{"id":67935,"date":"2026-10-22T13:40:19","date_gmt":"2026-10-22T08:10:19","guid":{"rendered":"https:\/\/johnsonfrancis.org\/professional\/?p=67935"},"modified":"2026-10-22T13:40:27","modified_gmt":"2026-10-22T08:10:27","slug":"new-series-of-interactive-cardiology-mcqs-4","status":"publish","type":"post","link":"https:\/\/johnsonfrancis.org\/professional\/new-series-of-interactive-cardiology-mcqs-4\/","title":{"rendered":"New Series of Interactive Cardiology MCQs 4"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<!-- \n  INSTRUCTIONS FOR WORDPRESS:\n  1. In your WordPress editor (Gutenberg), add a new \"Custom HTML\" block.\n  2. Copy everything from line 1 to the end of this file.\n  3. Paste it into the Custom HTML block.\n  4. Preview or Publish the post to see the interactive MCQs in action.\n-->\n\n<!-- Load Tailwind CSS safely for WordPress -->\n<script src=\"https:\/\/cdn.tailwindcss.com\"><\/script>\n<script>\n  tailwind.config = {\n    corePlugins: {\n      preflight: false, \/\/ Prevents Tailwind from overriding your WP theme's base styles\n    }\n  }\n<\/script>\n\n<div class=\"mcq-widget-container max-w-4xl mx-auto font-sans text-base text-gray-800 relative\">\n\n    <!-- Sticky Scoreboard \/ Leaderboard Header -->\n    <div class=\"sticky top-0 z-50 bg-white\/95 backdrop-blur-sm border-b-2 border-indigo-500 shadow-md rounded-b-2xl p-4 mb-8 flex justify-between items-center transition-all duration-300\">\n        <div class=\"flex flex-col\">\n            <h2 class=\"text-xl font-extrabold text-slate-800 m-0 leading-tight\">Cardiology MCQs: Part 4<\/h2>\n            <p class=\"text-sm text-slate-500 m-0 font-medium\" id=\"progress-text\">Answered: 0 \/ 25<\/p>\n        <\/div>\n        <div class=\"flex items-center gap-4 bg-slate-50 px-4 py-2 rounded-xl border border-slate-200 shadow-inner\">\n            <div class=\"hidden sm:block\">\n                <p class=\"text-xs font-bold text-slate-400 uppercase tracking-widest m-0 text-right\">Current Score<\/p>\n            <\/div>\n            <div class=\"text-right\">\n                <div class=\"text-3xl font-black text-indigo-600 tracking-tighter leading-none\" id=\"score-display\">\n                    0<span class=\"text-lg text-slate-400 font-bold mx-1\">\/<\/span><span class=\"text-xl text-slate-500 font-bold\">25<\/span>\n                <\/div>\n            <\/div>\n            <div class=\"w-10 h-10 bg-indigo-100 rounded-full flex items-center justify-center\">\n                <svg class=\"w-6 h-6 text-indigo-600\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M9 12l2 2 4-4m6 2a9 9 0 11-18 0 9 9 0 0118 0z\"><\/path><\/svg>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 1 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            1. Which parameter is measured during the wave-free period of diastole without hyperemic agents?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) FFR<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) iFR<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) CFR<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Pd\/Pa<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Instantaneous wave-free ratio (iFR) is measured during a specific period in diastole where microvascular resistance is constant and minimized, negating the need for vasodilators like adenosine.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 2 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            2. The genetic mutation most commonly associated with Brugada syndrome involves which ion channel?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Potassium<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Calcium<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Sodium<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Chloride<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Mutations in the SCN5A gene, encoding the alpha subunit of the cardiac sodium channel, are the most common identified genetic cause of Brugada syndrome.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 3 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            3. In a patient with classical low-flow, low-gradient severe AS with reduced LVEF, which test distinguishes true severe from pseudosevere AS?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Exercise stress echo<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Dobutamine stress echo<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Cardiac MRI<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Coronary angiography<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Low-dose dobutamine stress echocardiography is used to assess contractile reserve and differentiate true severe AS from pseudosevere AS.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 4 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            4. Which drug is a small interfering RNA (siRNA) directed against PCSK9 used for lowering LDL-C?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Evolocumab<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Alirocumab<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Bempedoic acid<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">D) Inclisiran<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Inclisiran is a double-stranded siRNA that inhibits the translation of PCSK9 in the liver, leading to prolonged reductions in LDL cholesterol.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 5 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            5. The classic &#8216;square root sign&#8217; on right ventricular hemodynamic pressure tracing is characteristic of:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Cardiac tamponade<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Restrictive cardiomyopathy<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Constrictive pericarditis<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) RV infarction<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> The dip-and-plateau or &#8216;square root&#8217; sign represents rapid early diastolic filling followed by an abrupt halt, classically seen in constrictive pericarditis.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 6 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            6. Which tachycardia is classically described as &#8216;verapamil-sensitive&#8217;?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) AVNRT<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Idiopathic left fascicular VT<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) RVOT tachycardia<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Antidromic AVRT<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Idiopathic left fascicular VT is famously sensitive to verapamil, typically presenting with RBBB morphology and left axis deviation.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 7 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            7. &#8216;Cannon A waves&#8217; in the jugular venous pulse are a hallmark sign of:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Atrial fibrillation<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Tricuspid regurgitation<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) AV dissociation<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Severe PAH<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Cannon A waves occur when the right atrium contracts against a closed tricuspid valve during AV dissociation (e.g., in complete heart block or VT).\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 8 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            8. Primary mechanism of action of sacubitril?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) ACE inhibition<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) ARB<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Neprilysin inhibition<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Aldosterone antagonism<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Sacubitril is a prodrug that inhibits neprilysin, an enzyme responsible for degrading natriuretic peptides and bradykinin.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 9 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            9. Which congenital heart defect is most strongly associated with WPW syndrome?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Tetralogy of Fallot<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Ebstein anomaly<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) TGA<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) VSD<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Ebstein anomaly, characterized by apical displacement of the tricuspid valve, has a high association with accessory pathways and WPW.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 10 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            10. LGE on Cardiac MRI showing a global, subendocardial distribution not conforming to a coronary territory is classic for:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Cardiac sarcoidosis<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) HOCM<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Cardiac amyloidosis<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Myocarditis<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> The classic LGE pattern in cardiac amyloidosis is diffuse, global subendocardial enhancement with abnormal myocardial nulling.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 11 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            11. Which medication primarily inhibits the late inward sodium current (INa)?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Ivabradine<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Ranolazine<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Nicorandil<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Trimetazidine<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Ranolazine selectively inhibits the late phase of the inward sodium current, reducing intracellular calcium overload.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 12 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            12. Wellens&#8217; syndrome on an ECG is highly specific for critical stenosis of which artery?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) LCx<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) RCA<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Left main<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">D) LAD<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Wellens&#8217; syndrome (biphasic or deeply inverted T waves in V2-V3) indicates critical proximal stenosis of the LAD.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 13 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            13. Epsilon waves on an ECG are most commonly associated with:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Brugada syndrome<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) ARVC<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) HOCM<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Early repolarization<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Epsilon waves are a major diagnostic criterion for ARVC, reflecting delayed right ventricular activation.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 14 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            14. In Marfan syndrome, prophylactic aortic root replacement is recommended when the root diameter reaches:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) 4.0 cm<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) 4.5 cm<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) 5.0 cm<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) 5.5 cm<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> The general threshold for prophylactic surgery in Marfan syndrome is >= 5.0 cm, or smaller if high-risk features exist.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 15 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            15. A classic side effect uniquely associated with the P2Y12 inhibitor ticagrelor is:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Gingival hyperplasia<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Dyspnea<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Thyroid dysfunction<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Peripheral edema<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Ticagrelor is known to cause dyspnea in a significant percentage of patients, likely related to its effects on adenosine metabolism.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 16 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            16. A &#8216;water-bottle&#8217; shaped heart on a chest X-ray is most indicative of:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Severe DCM<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Large pericardial effusion<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) RVH<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) LV aneurysm<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> A massive pericardial effusion classically results in an enlarged, globular &#8216;water-bottle&#8217; shaped cardiac silhouette on CXR.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 17 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            17. Which targeted therapy acts as an endothelin receptor antagonist for PAH?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Sildenafil<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Riociguat<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Bosentan<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Selexipag<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Bosentan is a dual endothelin receptor antagonist (ERA) used in PAH to prevent endothelin-mediated vasoconstriction.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 18 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            18. Protein-losing enteropathy (PLE) is a known severe complication of:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) BT shunt<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Ross procedure<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Fontan operation<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Arterial switch<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> PLE is a highly morbid complication of the Fontan circulation, characterized by protein loss into the GI tract due to elevated central venous pressures.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 19 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            19. Which genetic mutation is primarily responsible for Loeys-Dietz syndrome?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) FBN1<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) COL3A1<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) TGFBR1\/2<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) MYBPC3<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Loeys-Dietz syndrome is caused by mutations in the transforming growth factor-beta receptor genes, distinguishing it from Marfan syndrome.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 20 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            20. In HOCM, systolic anterior motion (SAM) typically involves which valve?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Aortic<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Mitral<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Tricuspid<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Pulmonary<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> SAM refers to the abnormal movement of the anterior mitral valve leaflet toward the septum during systole, causing LVOT obstruction.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 21 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            21. &#8216;Osborn waves&#8217; (J waves) on an ECG are pathognomonic for:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Hyperkalemia<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Hypocalcemia<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Hypothermia<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) SAH<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Osborn waves are positive deflections at the J point classically seen in severe hypothermia.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 22 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            22. Which antiarrhythmic agent requires 3 days of inpatient monitoring during initiation due to Torsades de Pointes risk?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Flecainide<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">B) Dofetilide<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Amiodarone<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Propafenone<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Dofetilide carries a high risk of dose-dependent QT prolongation and mandates a minimum of 3 days inpatient telemetry monitoring.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 23 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            23. Which non-DHP CCB should be avoided in patients with HFrEF?\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">A) Amlodipine<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Nifedipine<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">C) Verapamil<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Felodipine<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Verapamil has significant negative inotropic effects and is generally contraindicated in HFrEF as it can exacerbate failure.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 24 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            24. An &#8216;a&#8217; wave in the venous pulse that is taller than the &#8216;v&#8217; wave is typical of:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">A) Tricuspid stenosis<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Mitral regurgitation<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) ASD<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Severe TR<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> In tricuspid stenosis, the right atrium contracts forcefully against a stenotic valve, producing a prominent &#8216;a&#8217; wave in the JVP.\n            <\/p>\n        <\/div>\n    <\/div>\n\n    <!-- MCQ 25 -->\n    <div class=\"mcq-card bg-white border border-slate-200 rounded-2xl shadow-sm hover:shadow-md transition-shadow p-6 mb-8\">\n        <h3 class=\"text-lg font-bold text-slate-800 mb-4 pb-2 border-b border-slate-100\">\n            25. Pulsus paradoxus is defined as:\n        <\/h3>\n        <div class=\"options-container space-y-3 mb-5\">\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"true\">\n                <span class=\"font-medium\">A) SBP drop >10 mmHg during inspiration<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">B) Decrease in pulse during expiration<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">C) Alternating strong and weak pulses<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n            <button class=\"option-btn w-full text-left p-4 bg-slate-50 border border-slate-200 rounded-xl hover:bg-slate-100 transition-colors flex justify-between items-center cursor-pointer focus:outline-none focus:ring-2 focus:ring-indigo-400\" data-correct=\"false\">\n                <span class=\"font-medium\">D) Delayed\/weak pulse<\/span>\n                <span class=\"icon-container w-6 h-6 flex-shrink-0\"><\/span>\n            <\/button>\n        <\/div>\n        <div class=\"explanation-container hidden mt-4 p-5 bg-indigo-50 border-l-4 border-indigo-500 rounded-r-xl shadow-inner\">\n            <p class=\"text-indigo-900 text-sm leading-relaxed m-0\">\n                <strong>Explanation:<\/strong> Pulsus paradoxus is a drop in systolic blood pressure of >10 mmHg during inspiration, resulting from enhanced ventricular interdependence in cardiac tamponade.\n            <\/p>\n        <\/div>\n    <\/div>\n\n<\/div>\n\n<!-- Vanilla JavaScript for Quiz Logic & Scoreboard -->\n<script>\n    document.addEventListener(\"DOMContentLoaded\", function() {\n        const mcqCards = document.querySelectorAll('.mcq-card');\n        const scoreDisplay = document.getElementById('score-display');\n        const progressText = document.getElementById('progress-text');\n        \n        let score = 0;\n        let answeredCount = 0;\n        const totalQuestions = 25;\n\n        \/\/ SVG Icons\n        const checkIcon = `<svg class=\"w-6 h-6 text-green-600 drop-shadow-sm\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" d=\"M5 13l4 4L19 7\"><\/path><\/svg>`;\n        const crossIcon = `<svg class=\"w-6 h-6 text-red-600 drop-shadow-sm\" fill=\"none\" stroke=\"currentColor\" viewBox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" d=\"M6 18L18 6M6 6l12 12\"><\/path><\/svg>`;\n\n        mcqCards.forEach(card => {\n            const options = card.querySelectorAll('.option-btn');\n            const explanation = card.querySelector('.explanation-container');\n            let hasAnswered = false; 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Which parameter is measured during the wave-free period of diastole without hyperemic agents? A) FFR B) iFR C) CFR D) Pd\/Pa Explanation: Instantaneous wave-free ratio (iFR) is measured during a specific period in diastole where microvascular resistance is constant and minimized, negating the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":67937,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-67935","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>New Series of Interactive Cardiology MCQs 4 - All About Cardiovascular System and Disorders<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnsonfrancis.org\/professional\/new-series-of-interactive-cardiology-mcqs-4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New Series of Interactive Cardiology MCQs 4 - All About Cardiovascular System and Disorders\" \/>\n<meta property=\"og:description\" content=\"Cardiology MCQs: Part 4 Answered: 0 \/ 25 Current Score 0\/25 1. 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