Difference between Cardiac Arrest & Heart Attack

Cardiac Arrest - Heart malfunctions & suddenly stops beating unexpectedly. Heart stops pumping blood to brain, lung & other organs leading to person losing consciousness within seconds & death within minutes if not treated.

Heart Attack - Blood flow to the heart is stopped due to a blocked artery causing a part of heart to die unless reopened quickly. Symptoms could be immediate & intense or slow & persists for hours, days or weeks.