New Series of Interactive Cardiology MCQs 18 - All About Cardiovascular System and Disorders

Q1

A patient with chronic Heart Failure with Reduced Ejection Fraction (HFrEF) is being transitioned from an ACE inhibitor (Enalapril) to an ARNI (Sacubitril/Valsartan). What is the strictly mandated washout protocol to prevent life-threatening angioedema?

Q2

During an echocardiogram to evaluate a patient for severe Aortic Stenosis, the sonographer reports the Dimensionless Index (DI). What DI cutoff value is highly indicative of severe aortic stenosis?

Q3

In a patient with Atrial Fibrillation, an ECG shows an intermittently widened QRS complex. This aberrant conduction typically occurs when a long R-R interval is followed immediately by a short R-R interval. What is this phenomenon called?

Q4

A patient undergoing chemotherapy with Doxorubicin (an anthracycline) is being monitored for cardiotoxicity. Which of the following statements correctly characterizes anthracycline-induced cardiomyopathy?

Q5

Cardiac PET imaging with 13N-ammonia and 18F-FDG is considered the gold standard for assessing myocardial viability. Which imaging pattern confirms the presence of viable, hibernating myocardium?

Q6

Bempedoic acid is a non-statin oral lipid-lowering therapy. What is its precise cellular mechanism of action in reducing LDL cholesterol?

Q7

During structural heart interventions, the deployment of a Transcatheter Aortic Valve Replacement (TAVR) — particularly self-expanding platforms like the CoreValve/Evolut — carries a notable risk of which specific conduction system abnormality requiring a permanent pacemaker?

Q8

In patients with Wolff-Parkinson-White (WPW) syndrome, Atrioventricular Reentrant Tachycardia (AVRT) can present as orthodromic or antidromic. What is the classic ECG hallmark of an ANTIDROMIC AVRT?

Q9

During an echocardiogram for suspected cardiac tamponade, several 2D and Doppler signs are evaluated. Which finding is considered the most SENSITIVE (often the earliest) 2D echocardiographic sign of cardiac tamponade?

Q10

A patient presenting with an acute STEMI is assessed using the Killip classification system to stratify their mortality risk. If the patient has audible rales over more than half of the lung fields and pulmonary edema on chest X-ray, what is their Killip Class?

Q11

When screening a hypertensive patient for Primary Hyperaldosteronism (Conn’s Syndrome), which biochemical profile is the diagnostic hallmark?

Q12

According to the Modified Duke Criteria for the diagnosis of Infective Endocarditis, which of the following is considered a MAJOR criterion?

Q13

A patient with known Vasospastic (Prinzmetal) Angina presents to the clinic. Which class of medications is strictly CONTRAINDICATED as it can exacerbate coronary artery spasm?

Q14

During physical examination, a “Pulsus Bisferiens” (a biphasic pulse with two palpable systolic peaks) is classically palpated in the carotid arteries of patients with which specific condition?

Q15

A patient on long-term Amiodarone therapy for recurrent VT requires routine systemic toxicity screening. Which specific parameter on Pulmonary Function Testing (PFTs) is the most sensitive marker for early amiodarone-induced pulmonary toxicity?

Q16

In evaluating Atrial Septal Defects (ASDs), the ECG can provide critical clues to the anatomical subtype. How do the frontal plane QRS axes typically differ between an Ostium Secundum ASD and an Ostium Primum ASD?

Q17

A patient with an acute Inferior STEMI and confirmed Right Ventricular (RV) infarction becomes acutely hypotensive (BP 75/40 mmHg) with clear lung fields. Which standard ACS medication is strictly CONTRAINDICATED in this specific clinical scenario?

Q18

During Dobutamine Stress Echocardiography (DSE) to evaluate for myocardial viability in a region of akinetic muscle, a “biphasic response” is observed. What exactly does a biphasic response entail, and what does it predict?

Q19

A patient with chronic Cor Pulmonale presents with severe right heart failure. By strict pathophysiological definition, which of the following mechanisms must NOT be the cause of the patient’s right ventricular failure for it to be classified as Cor Pulmonale?

Q20

In the cardiac catheterization lab, Rotational Atherectomy (e.g., Rotablator) is considered for a complex Percutaneous Coronary Intervention (PCI). What is the primary angiographic indication to utilize this specific device?

Q21

A 28-year-old patient with hypertension is noted to have significantly weaker pulses in the lower extremities compared to the upper extremities. A chest X-ray demonstrates the “Figure 3 sign”. What highly specific bony abnormality is typically seen on the CXR in this condition?

Q22

Echocardiography is performed on a patient from a developing country presenting with exertional dyspnea and hemoptysis. The exam shows a “hockey-stick” appearance of the anterior mitral leaflet and restricted motion of the posterior leaflet. What is the diagnosis?

Q23

When determining the pacing mode of a Permanent Pacemaker (e.g., VVI, DDD), what does the FIRST letter of the standard NBG code denote?

Q24

A patient with decompensated heart failure is diagnosed with “Cold and Wet” cardiogenic shock. An inotrope is required to increase cardiac output. How does Milrinone act to improve contractility?

Q25

During the physical examination of a patient with severe, chronic Aortic Regurgitation, the physician observes visible capillary pulsations in the patient’s fingernail beds when gentle pressure is applied. What is the eponym for this classic clinical sign?

Interactive Cardiology MCQs #18

A patient with chronic Heart Failure with Reduced Ejection Fraction (HFrEF) is being transitioned from an ACE inhibitor (Enalapril) to an ARNI (Sacubitril/Valsartan). What is the strictly mandated washout protocol to prevent life-threatening angioedema?

During an echocardiogram to evaluate a patient for severe Aortic Stenosis, the sonographer reports the Dimensionless Index (DI). What DI cutoff value is highly indicative of severe aortic stenosis?

In a patient with Atrial Fibrillation, an ECG shows an intermittently widened QRS complex. This aberrant conduction typically occurs when a long R-R interval is followed immediately by a short R-R interval. What is this phenomenon called?

A patient undergoing chemotherapy with Doxorubicin (an anthracycline) is being monitored for cardiotoxicity. Which of the following statements correctly characterizes anthracycline-induced cardiomyopathy?

Cardiac PET imaging with 13N-ammonia and 18F-FDG is considered the gold standard for assessing myocardial viability. Which imaging pattern confirms the presence of viable, hibernating myocardium?

Bempedoic acid is a non-statin oral lipid-lowering therapy. What is its precise cellular mechanism of action in reducing LDL cholesterol?

During structural heart interventions, the deployment of a Transcatheter Aortic Valve Replacement (TAVR) — particularly self-expanding platforms like the CoreValve/Evolut — carries a notable risk of which specific conduction system abnormality requiring a permanent pacemaker?

In patients with Wolff-Parkinson-White (WPW) syndrome, Atrioventricular Reentrant Tachycardia (AVRT) can present as orthodromic or antidromic. What is the classic ECG hallmark of an ANTIDROMIC AVRT?

During an echocardiogram for suspected cardiac tamponade, several 2D and Doppler signs are evaluated. Which finding is considered the most SENSITIVE (often the earliest) 2D echocardiographic sign of cardiac tamponade?

A patient presenting with an acute STEMI is assessed using the Killip classification system to stratify their mortality risk. If the patient has audible rales over more than half of the lung fields and pulmonary edema on chest X-ray, what is their Killip Class?

When screening a hypertensive patient for Primary Hyperaldosteronism (Conn’s Syndrome), which biochemical profile is the diagnostic hallmark?

According to the Modified Duke Criteria for the diagnosis of Infective Endocarditis, which of the following is considered a MAJOR criterion?

A patient with known Vasospastic (Prinzmetal) Angina presents to the clinic. Which class of medications is strictly CONTRAINDICATED as it can exacerbate coronary artery spasm?

During physical examination, a “Pulsus Bisferiens” (a biphasic pulse with two palpable systolic peaks) is classically palpated in the carotid arteries of patients with which specific condition?

A patient on long-term Amiodarone therapy for recurrent VT requires routine systemic toxicity screening. Which specific parameter on Pulmonary Function Testing (PFTs) is the most sensitive marker for early amiodarone-induced pulmonary toxicity?

In evaluating Atrial Septal Defects (ASDs), the ECG can provide critical clues to the anatomical subtype. How do the frontal plane QRS axes typically differ between an Ostium Secundum ASD and an Ostium Primum ASD?

A patient with an acute Inferior STEMI and confirmed Right Ventricular (RV) infarction becomes acutely hypotensive (BP 75/40 mmHg) with clear lung fields. Which standard ACS medication is strictly CONTRAINDICATED in this specific clinical scenario?

During Dobutamine Stress Echocardiography (DSE) to evaluate for myocardial viability in a region of akinetic muscle, a “biphasic response” is observed. What exactly does a biphasic response entail, and what does it predict?

A patient with chronic Cor Pulmonale presents with severe right heart failure. By strict pathophysiological definition, which of the following mechanisms must NOT be the cause of the patient’s right ventricular failure for it to be classified as Cor Pulmonale?

In the cardiac catheterization lab, Rotational Atherectomy (e.g., Rotablator) is considered for a complex Percutaneous Coronary Intervention (PCI). What is the primary angiographic indication to utilize this specific device?

A 28-year-old patient with hypertension is noted to have significantly weaker pulses in the lower extremities compared to the upper extremities. A chest X-ray demonstrates the “Figure 3 sign”. What highly specific bony abnormality is typically seen on the CXR in this condition?

Echocardiography is performed on a patient from a developing country presenting with exertional dyspnea and hemoptysis. The exam shows a “hockey-stick” appearance of the anterior mitral leaflet and restricted motion of the posterior leaflet. What is the diagnosis?

When determining the pacing mode of a Permanent Pacemaker (e.g., VVI, DDD), what does the FIRST letter of the standard NBG code denote?

A patient with decompensated heart failure is diagnosed with “Cold and Wet” cardiogenic shock. An inotrope is required to increase cardiac output. How does Milrinone act to improve contractility?

During the physical examination of a patient with severe, chronic Aortic Regurgitation, the physician observes visible capillary pulsations in the patient’s fingernail beds when gentle pressure is applied. What is the eponym for this classic clinical sign?