DEAR MAYO CLINIC: What is the difference between sudden cardiac arrest and a heart attack? Who is at risk for both, and what safety measures can we take? ANSWER: Sudden cardiac arrest may occur in various conditions when someone, while active (playing basketball or walking with friends), collapses and passes out. Their blood pressure drops, and often […] The post Mayo Clinic Q and A: Cardiac arrest vs. heart attacks: Who is at risk? appeared first on Web-Release.