{"version":"1.0","provider_name":"All About Cardiovascular System and Disorders","provider_url":"https:\/\/johnsonfrancis.org\/professional","author_name":"Johnson Francis","author_url":"https:\/\/johnsonfrancis.org\/professional\/author\/jf\/","title":"Mahaim fibre tachycardia - Cardiology MCQ - All About Cardiovascular System and Disorders","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"20tJ9k89zV\"><a href=\"https:\/\/johnsonfrancis.org\/professional\/mahaim-fibre-tachycardia-cardiology-mcq\/\">Mahaim fibre tachycardia &#8211; Cardiology MCQ<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/johnsonfrancis.org\/professional\/mahaim-fibre-tachycardia-cardiology-mcq\/embed\/#?secret=20tJ9k89zV\" width=\"600\" height=\"338\" title=\"&#8220;Mahaim fibre tachycardia &#8211; Cardiology MCQ&#8221; &#8212; All About Cardiovascular System and Disorders\" data-secret=\"20tJ9k89zV\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/johnsonfrancis.org\/professional\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Which of the following is not true of Mahaim fibre tachycardia? a) Left bundle branch block pattern b) Normal baseline ECG c)\u00a0Mahaim fibres do not conduct retrogradely d) Narrow QRS tachycardia Correct answer: d) Narrow QRS tachycardia Mahaim fibres do not conduct retrogradely.\u00a0So Mahaim fibre tachycardia is always with wide QRS complexes \u2013 antidromic with\u00a0 [&hellip;]"}