[HR] - In an emergency, every minute matters. Clifton Callaway, MD answers how you can tell the difference between a heart attack versus cardiac arrest. Contents: 0:00 - Cardiac Arrest vs. Heart Attack 0:35 - Beginning CPR for Someone Experiencing Cardiac Arrest To learn more, please visit https://minutesmatter.upmc.com/ #UPMC #hearthealth #MinutesMatter #CardiacArrest