DEAR DOCTOR K: I thought CPR involved chest compressions, breathing into a person's mouth and checking their pulse. But my daughter told me that the "new" CPR involves only chest compressions. Is this correct?
DEAR READER: That's right. Since 2008, the American Heart Association has recommended "hands only" cardiopulmonary resuscitation (CPR) if an adult suddenly collapses. Cardiac arrest is usually to blame when someone collapses and stops breathing. It occurs when the heart's electrical system malfunctions. The heart beats rapidly and chaotically -- or stops beating altogether. The person stops breathing and becomes unresponsive.