{"id":155,"date":"2026-08-06T15:32:16","date_gmt":"2026-08-06T15:32:16","guid":{"rendered":"https:\/\/medatlashealth.com\/?p=155"},"modified":"2026-09-19T18:14:16","modified_gmt":"2026-09-19T18:14:16","slug":"sudden-cardiac-arrest-explained","status":"publish","type":"post","link":"https:\/\/medatlashealth.com\/rs\/sudden-cardiac-arrest-explained\/","title":{"rendered":"Sudden Cardiac Arrest Explained: Causes, Warning Signs, and CPR"},"content":{"rendered":"<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\"><strong>Sudden cardiac arrest (SCA)<\/strong> is a life-threatening medical emergency in which the heart suddenly loses its ability to pump blood effectively. When this happens, blood flow to the brain and other vital organs rapidly decreases, and the person can become unconscious within seconds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sudden cardiac arrest can happen with little or no warning. Immediate recognition, cardiopulmonary resuscitation (CPR), and rapid use of an automated external defibrillator (AED), when appropriate, are critical parts of the response.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But what exactly happens inside the heart during cardiac arrest? What causes it, and how is it different from a heart attack?<\/p>\n<\/div>\n\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);background-color:#dbe7f5;border-top:1px solid #cedff2;border-right:1px solid #cedff2;border-bottom:1px solid #cedff2;border-left:1px solid #cedff2;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-right-radius:18px;border-bottom-left-radius:18px;}.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-contents-title-wrap{padding-right:12px;padding-left:12px;}.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-contents-title-wrap{color:#245fb8;}.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-contents-title{color:#245fb8;font-size:20px;font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-content-wrap .kb-table-of-content-list{font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-toggle-icon-style-basiccircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-toggle-icon-style-basiccircle .kb-table-of-contents-icon-trigger:before, .kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-toggle-icon-style-arrowcircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-toggle-icon-style-arrowcircle .kb-table-of-contents-icon-trigger:before, .kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-toggle-icon-style-xclosecircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-toggle-icon-style-xclosecircle .kb-table-of-contents-icon-trigger:before{background-color:#dbe7f5;}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-content-wrap{border-top:1px solid #cedff2;border-right:1px solid #cedff2;border-bottom:1px solid #cedff2;border-left:1px solid #cedff2;}}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id155_f1ed4d-f6 .kb-table-of-content-wrap{border-top:1px solid #cedff2;border-right:1px solid #cedff2;border-bottom:1px solid #cedff2;border-left:1px solid #cedff2;}}<\/style>\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_214ad3-4a .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_214ad3-4a{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_214ad3-4a alignnone\"><style>.kt-svg-item-155_bb7070-07 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_bb7070-07 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_bb7070-07\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-1\" style=\"border-top-left-radius:206px;border-top-right-radius:206px;border-bottom-left-radius:206px;border-bottom-right-radius:206px;color:#245fb8\">What Is Sudden Cardiac Arrest?<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Sudden cardiac arrest occurs when the heart suddenly stops pumping blood effectively.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The heart has an electrical system that controls the rate and rhythm of each heartbeat. Normally, electrical signals travel through the heart in a coordinated pattern, allowing the heart muscle to contract and pump blood.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">During cardiac arrest, this electrical activity can become severely abnormal. Dangerous arrhythmias such as ventricular fibrillation or ventricular tachycardia can prevent the heart from producing an effective heartbeat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When circulation stops, the brain and other organs no longer receive enough oxygen-rich blood. Without rapid treatment, cardiac arrest can quickly become fatal.<\/p>\n\n\n\n<figure style=\"padding-top:15px;padding-right:15px;padding-bottom:15px;padding-left:15px\" class=\"wp-block-video\"><video height=\"720\" style=\"aspect-ratio: 1280 \/ 720;\" width=\"1280\" autoplay controls muted src=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/Sudden-Cardiac-Arrest.mp4\" playsinline><\/video><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_e24fe0-30 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_e24fe0-30{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_e24fe0-30 alignnone\"><style>.kt-svg-item-155_75ef2d-8b .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_75ef2d-8b .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_75ef2d-8b\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-2\" style=\"border-top-left-radius:177px;border-top-right-radius:177px;border-bottom-left-radius:177px;border-bottom-right-radius:177px;color:#245fb8\">Cardiac Arrest vs. Heart Attack: What&#8217;s the Difference?<\/h2>\n<\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Cardiac arrest and heart attack are not the same condition.<\/p>\n\n\n\n<p class=\"has-border-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">A <strong>heart attack<\/strong> occurs when blood flow to part of the heart muscle becomes blocked. It is primarily a circulation problem.<\/p>\n\n\n\n<p class=\"has-border-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><strong>Cardiac arrest<\/strong>, on the other hand, occurs when the heart&#8217;s electrical system malfunctions and the heart can no longer pump blood effectively. It is primarily an electrical problem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The two conditions can be related. A heart attack can damage heart tissue and sometimes trigger a dangerous heart rhythm that results in cardiac arrest.<\/p>\n\n\n\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#dbe7f5;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-71739e78 wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">In simple terms:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Heart attack:<\/strong> blood flow to heart muscle is blocked.<\/li>\n\n\n\n<li><strong>Cardiac arrest:<\/strong> the heart suddenly stops pumping blood effectively.<\/li>\n\n\n\n<li><strong>A heart attack can sometimes trigger cardiac arrest.<\/strong><\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_f4a777-16 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_f4a777-16{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_f4a777-16 alignnone\"><style>.kt-svg-item-155_a14ff2-30 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_a14ff2-30 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_a14ff2-30\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-3\" style=\"border-top-left-radius:199px;border-top-right-radius:199px;border-bottom-left-radius:199px;border-bottom-right-radius:199px;color:#245fb8\">What Happens to the Heart During Cardiac Arrest?<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"has-text-align-center wp-block-paragraph\">The heart depends on precisely coordinated electrical signals.<\/p>\n\n\n\n<p class=\"has-border-color wp-block-paragraph\" style=\"border-color:#cedff2;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px\">One particularly dangerous rhythm is <strong>ventricular fibrillation (VF)<\/strong>. During VF, the lower chambers of the heart develop chaotic electrical activity and can no longer contract effectively.<\/p>\n\n\n\n<p class=\"has-border-color wp-block-paragraph\" style=\"border-color:#cedff2;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px\">Another potentially dangerous rhythm is <strong>ventricular tachycardia (VT)<\/strong>. The ventricles beat extremely rapidly, which can prevent the heart from filling and pumping blood effectively.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In either situation, circulation can collapse.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An AED can analyze the heart&#8217;s rhythm and determine whether an electrical shock is appropriate. For certain shockable rhythms, early defibrillation can be lifesaving.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_9d7ec7-16 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_9d7ec7-16{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_9d7ec7-16 alignnone\"><style>.kt-svg-item-155_d39112-9e .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_d39112-9e .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_d39112-9e\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-4\" style=\"border-top-left-radius:238px;border-top-right-radius:238px;border-bottom-left-radius:238px;border-bottom-right-radius:238px;color:#245fb8\">What Causes Sudden Cardiac Arrest?<\/h2>\n<\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Sudden cardiac arrest can have several possible causes.<\/p>\n\n\n\n<div class=\"wp-block-group medatlas-factor-list is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-71739e78 wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">Coronary Artery Disease<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Coronary artery disease can reduce blood flow to the heart and increase the risk of dangerous arrhythmias.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A heart attack related to coronary artery disease can also leave scar tissue that interferes with the heart&#8217;s electrical system.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-8bd6105a wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">\n<h3 class=\"wp-block-heading\">Cardiomyopathy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cardiomyopathy refers to diseases affecting the heart muscle. Depending on the type, the heart muscle can become enlarged, thickened, or weakened.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A heart that appears strong or enlarged is <a href=\"https:\/\/medatlashealth.com\/rs\/strong-heart-healthy-heart-2\/\" data-type=\"link\" data-id=\"https:\/\/medatlashealth.com\/strong-heart-healthy-heart-2\/\">not necessarily a healthy heart<\/a>, particularly when structural changes are caused by underlying disease rather than normal athletic adaptation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Some forms can increase the risk of serious ventricular arrhythmias and sudden cardiac arrest.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-8bd6105a wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">\n<h3 class=\"wp-block-heading\">Electrical Disorders<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some conditions primarily affect the electrical system of the heart.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Examples include <strong>long QT syndrome<\/strong> and <strong>Brugada syndrome<\/strong>. These disorders can increase the risk of dangerous arrhythmias, sometimes even when there is no major structural abnormality of the heart.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-8bd6105a wp-block-group-is-layout-flex\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">\n<h3 class=\"wp-block-heading\">Other Possible Causes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Other factors associated with cardiac arrest can include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Severe abnormalities of potassium or magnesium<\/li>\n\n\n\n<li>Certain congenital heart conditions<\/li>\n\n\n\n<li>Severe heart failure<\/li>\n\n\n\n<li>Significant oxygen deprivation<\/li>\n\n\n\n<li>Some toxic exposures or medications<\/li>\n\n\n\n<li>Previous cardiac arrest<\/li>\n\n\n\n<li>Certain inherited heart conditions<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Importantly, cardiac arrest can occasionally occur in people who have no previously diagnosed heart disease.<\/p>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_be62ba-97 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_be62ba-97{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_be62ba-97 alignnone\"><style>.kt-svg-item-155_1fec1c-65 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_1fec1c-65 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_1fec1c-65\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-5\" style=\"border-top-left-radius:196px;border-top-right-radius:196px;border-bottom-left-radius:196px;border-bottom-right-radius:196px;color:#245fb8\">Can Sudden Cardiac Arrest Happen Without Warning?<\/h2>\n<\/div>\n\n\n\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-6 wp-block-paragraph\" style=\"color:#245fb8\"><strong>Yes.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sudden cardiac arrest can occur unexpectedly, and some people have no obvious warning symptoms.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, possible symptoms before cardiac arrest can include:<\/p>\n\n\n\n<ul style=\"border-color:#e5eef8;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:30px;padding-bottom:12px;padding-left:30px\" class=\"wp-block-list has-border-color has-background\">\n<li>Chest discomfort<\/li>\n\n\n\n<li>Shortness of breath<\/li>\n\n\n\n<li>Unexplained weakness<\/li>\n\n\n\n<li>Palpitations<\/li>\n\n\n\n<li>Dizziness<\/li>\n\n\n\n<li>Fainting or near-fainting<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These symptoms can have many different causes, but unexplained fainting or significant cardiac symptoms should be medically evaluated.<\/p>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_9bee1e-bc .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_9bee1e-bc{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_9bee1e-bc alignnone\"><style>.kt-svg-item-155_6a8f72-e8 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_6a8f72-e8 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_6a8f72-e8\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-7\" style=\"border-top-left-radius:219px;border-top-right-radius:219px;border-bottom-left-radius:219px;border-bottom-right-radius:219px;color:#245fb8\">Why Can Cardiac Arrest Happen in Young People?<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Although cardiac arrest is more common with increasing age and cardiovascular disease, it can also occur in younger people.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Possible causes include inherited electrical disorders, cardiomyopathies, congenital heart conditions, and other underlying cardiac abnormalities.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unexplained fainting during exercise, recurrent unexplained palpitations, or a family history of sudden unexplained death may warrant medical evaluation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is particularly relevant to sports medicine. For more information, read our article:<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><a href=\"https:\/\/medatlashealth.com\/rs\/sudden-cardiac-arrest-in-athletes\/\" data-type=\"link\" data-id=\"https:\/\/medatlashealth.com\/sudden-cardiac-arrest-in-athletes\/\">Za\u0161to se mladi sportisti iznenada sru\u0161e i preminu?<\/a><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_43d152-94 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_43d152-94{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_43d152-94 alignnone\"><style>.kt-svg-item-155_8c60b7-53 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_8c60b7-53 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_8c60b7-53\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-8\" style=\"border-top-left-radius:248px;border-top-right-radius:248px;border-bottom-left-radius:248px;border-bottom-right-radius:248px;color:#245fb8\">What Happens to the Brain During Cardiac Arrest?<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">The brain requires a continuous supply of oxygen-rich blood.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the heart stops pumping effectively, blood flow to the brain falls dramatically. The person may become unconscious very quickly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why cardiac arrest is a time-critical emergency.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CPR can help maintain circulation until an AED or professional medical treatment becomes available. Early recognition, CPR and rapid defibrillation are key components of the response to cardiac arrest.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_9a2e9e-52 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_9a2e9e-52{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_9a2e9e-52 alignnone\"><style>.kt-svg-item-155_3641ce-a7 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_3641ce-a7 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_3641ce-a7\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-9\" style=\"border-top-left-radius:170px;border-top-right-radius:170px;border-bottom-left-radius:170px;border-bottom-right-radius:170px;color:#245fb8\">What Should You Do If Someone Suddenly Collapses?<\/h2>\n<\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">If someone suddenly collapses and is unresponsive, treat the situation as a medical emergency.<\/p>\n\n\n\n<div class=\"wp-block-group medatlas-factor-list is-vertical is-layout-flex wp-container-core-group-is-layout-daeb2265 wp-block-group-is-layout-flex\" style=\"padding-top:10px;padding-right:10px;padding-bottom:10px;padding-left:10px\">\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-3f45cc71 wp-block-group-is-layout-flex\" style=\"border-color:#e5eef8;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:15px;padding-bottom:12px;padding-left:15px\">\n<h3 class=\"wp-block-heading\">1. Call Emergency Services<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Call your local emergency medical service immediately.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If another person is present, ask them to call while you assess the person and begin providing assistance.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-3ea1cef1 wp-block-group-is-layout-flex\" style=\"border-color:#e5eef8;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:18px;padding-bottom:12px;padding-left:18px\">\n<h3 class=\"wp-block-heading\">2. Start CPR<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If the person is unresponsive and not breathing normally, begin CPR as soon as possible.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For adult cardiac arrest, current resuscitation guidance recommends chest compressions at a rate of <strong>100\u2013120 compressions per minute<\/strong>. If you are not trained or are unsure what to do, follow instructions from the emergency dispatcher.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-3ea1cef1 wp-block-group-is-layout-flex\" style=\"border-color:#e5eef8;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:18px;padding-bottom:12px;padding-left:18px\">\n<h3 class=\"wp-block-heading\">3. Use an AED<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">If an automated external defibrillator is available, turn it on and follow its instructions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AEDs are designed to analyze the heart rhythm and determine whether a shock is appropriate. They are intended to guide rescuers through the process.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background is-vertical is-layout-flex wp-container-core-group-is-layout-3ea1cef1 wp-block-group-is-layout-flex\" style=\"border-color:#e5eef8;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:12px;padding-right:18px;padding-bottom:12px;padding-left:18px\">\n<h3 class=\"wp-block-heading\">4. Continue Until Help Arrives<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Continue CPR and follow the AED&#8217;s instructions until emergency medical professionals arrive or the person shows clear signs of recovery.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_67c11f-53 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_67c11f-53{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_67c11f-53 alignnone\"><style>.kt-svg-item-155_854938-37 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_854938-37 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_854938-37\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-10\" style=\"border-top-left-radius:225px;border-top-right-radius:225px;border-bottom-left-radius:225px;border-bottom-right-radius:225px;color:#245fb8\">Why Is an AED So Important?<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">An AED can identify certain dangerous heart rhythms and deliver a shock when appropriate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For shockable rhythms such as ventricular fibrillation, rapid defibrillation can be critical. The sooner an effective rhythm is restored, the sooner normal circulation can potentially return.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why public access to AEDs, early CPR, and rapid activation of emergency medical services are important parts of the chain of survival.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin-top:13px;margin-right:13px;margin-bottom:13px;margin-left:13px\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/AED-Manual-1024x576.png\" alt=\"\" class=\"wp-image-159\" srcset=\"https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/AED-Manual-1024x576.png 1024w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/AED-Manual-300x169.png 300w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/AED-Manual-768x432.png 768w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/AED-Manual-1536x864.png 1536w, https:\/\/medatlashealth.com\/wp-content\/uploads\/2026\/08\/AED-Manual.png 1672w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_4f888c-35 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_4f888c-35{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_4f888c-35 alignnone\"><style>.kt-svg-item-155_addb93-a1 .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_addb93-a1 .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_addb93-a1\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-11\" style=\"border-top-left-radius:206px;border-top-right-radius:206px;border-bottom-left-radius:206px;border-bottom-right-radius:206px;color:#245fb8\">Zaklju\u010dak<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<p class=\"wp-block-paragraph\">Sudden cardiac arrest is a medical emergency in which the heart suddenly loses its ability to pump blood effectively.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is different from a heart attack, although a heart attack can sometimes trigger cardiac arrest.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cardiac arrest may be associated with coronary artery disease, previous heart damage, cardiomyopathy, inherited electrical disorders, congenital heart conditions, and other medical problems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because the brain and other vital organs depend on continuous circulation, <strong>every second matters<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recognizing an unresponsive person, activating emergency medical services, starting CPR, and using an AED when available can make a critical difference.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Understanding cardiac arrest is not about diagnosing the condition yourself. It is about recognizing a life-threatening emergency and knowing that immediate action can help save a life.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-border-color has-background\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;background-color:#f4f9ff;padding-top:0px;padding-right:10px;padding-bottom:10px;padding-left:10px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-b42906b1 wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group medatlas-h2 has-border-color is-content-justification-center is-nowrap is-layout-flex wp-container-core-group-is-layout-d05cb3ef wp-block-group-is-layout-flex\" style=\"border-color:#bdd5ef;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px\"><style>.kt-svg-icons155_95022c-20 .kt-svg-item-0 .kb-svg-icon-wrap{color:var(--global-palette4, #2D3748);font-size:50px;}.wp-block-kadence-icon.kt-svg-icons155_95022c-20{justify-content:center;}<\/style>\n<div class=\"wp-block-kadence-icon kt-svg-icons kt-svg-icons155_95022c-20 alignnone\"><style>.kt-svg-item-155_168929-2f .kb-svg-icon-wrap, .kt-svg-style-stacked.kt-svg-item-155_168929-2f .kb-svg-icon-wrap{color:#1167d8;font-size:40px;}<\/style>\n<div class=\"wp-block-kadence-single-icon kt-svg-style-default kt-svg-icon-wrap kt-svg-item-155_168929-2f\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fas_heartbeat\"><svg viewbox=\"0 0 512 512\"  fill=\"currentColor\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M320.2 243.8l-49.7 99.4c-6 12.1-23.4 11.7-28.9-.6l-56.9-126.3-30 71.7H60.6l182.5 186.5c7.1 7.3 18.6 7.3 25.7 0L451.4 288H342.3l-22.1-44.2zM473.7 73.9l-2.4-2.5c-51.5-52.6-135.8-52.6-187.4 0L256 100l-27.9-28.5c-51.5-52.7-135.9-52.7-187.4 0l-2.4 2.4C-10.4 123.7-12.5 203 31 256h102.4l35.9-86.2c5.4-12.9 23.6-13.2 29.4-.4l58.2 129.3 49-97.9c5.9-11.8 22.7-11.8 28.6 0l27.6 55.2H481c43.5-53 41.4-132.3-7.3-182.1z\"\/><\/svg><\/span><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-link-color wp-elements-12\" style=\"border-top-left-radius:225px;border-top-right-radius:225px;border-bottom-left-radius:225px;border-bottom-right-radius:225px;color:#245fb8\">Frequently Asked Question<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group\" style=\"padding-right:15px;padding-left:15px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-935bae38 wp-block-group-is-layout-constrained\">\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What is sudden cardiac arrest?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Sudden cardiac arrest is the sudden loss of effective heart function, usually caused by a dangerous abnormal heart rhythm.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Is sudden cardiac arrest the same as a heart attack?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">No. A heart attack is mainly a blood-flow problem, while sudden cardiac arrest is primarily an electrical problem. A heart attack can sometimes trigger cardiac arrest<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What are the warning signs of sudden cardiac arrest?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">It may happen without warning, but possible symptoms include chest discomfort, palpitations, shortness of breath, dizziness, or fainting.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>What should I do if someone suddenly collapses?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Call emergency services, begin CPR, and use an AED as soon as possible.<br><\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can hands-only CPR be used?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">Yes. For an adult who suddenly collapses, hands-only CPR with continuous chest compressions is appropriate for untrained bystanders.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Can an AED shock someone by mistake?<\/summary>\n<p class=\"has-border-color has-theme-palette-9-background-color has-background wp-block-paragraph\" style=\"border-color:#cedff2;border-width:1px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:12px;padding-right:12px;padding-bottom:12px;padding-left:12px\">AEDs analyze the heart rhythm and only advise a shock when a shockable rhythm is detected.<\/p>\n<\/details>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color\" style=\"border-color:#dbe7f5;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:15px;padding-right:15px;padding-bottom:15px;padding-left:15px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-5c2a41ba wp-block-group-is-layout-constrained\">\n<h5 class=\"wp-block-heading has-text-align-center\">Medicinska napomena<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">This article is intended for general educational and informational purposes only. It does not replace professional medical advice, diagnosis, or treatment. If you or someone else is experiencing a medical emergency, contact your local emergency medical service immediately.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-border-color\" style=\"border-color:#dbe7f5;border-width:2px;border-top-left-radius:18px;border-top-right-radius:18px;border-bottom-left-radius:18px;border-bottom-right-radius:18px;padding-top:15px;padding-right:15px;padding-bottom:15px;padding-left:15px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-5c2a41ba wp-block-group-is-layout-constrained\">\n<h5 class=\"wp-block-heading has-text-align-center\">Medical Sources<\/h5>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>American Heart Association (AHA)<\/strong> \u2014 What Is Cardiac Arrest?<\/li>\n\n\n\n<li><strong>American Heart Association (AHA)<\/strong> \u2014 Cardiac Arrest vs. Heart Attack.<\/li>\n\n\n\n<li><strong>Mayo Clinic<\/strong> \u2014 Sudden Cardiac Arrest: Symptoms and Causes.<\/li>\n\n\n\n<li><strong>Resuscitation Council UK<\/strong> \u2014 2025 Adult Basic Life Support Guidelines.<\/li>\n\n\n\n<li><strong>Resuscitation Council UK<\/strong> \u2014 CPR and AED Training in the Community.<\/li>\n<\/ol>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Sudden cardiac arrest (SCA) is a life-threatening medical emergency in which the heart suddenly loses its ability to pump blood effectively&#8230;.<\/p>","protected":false},"author":1,"featured_media":157,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[17],"tags":[106,4,137,8,136,134,30,135,133,7],"class_list":["post-155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-heart-emergency-medicine","tag-aed","tag-cardiac-arrest","tag-cardiac-emergency","tag-cpr","tag-emergency-medicine","tag-first-aid","tag-heart-health","tag-heart-rhythm","tag-sudden-cardiac-arrest","tag-ventricular-fibrillation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - 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