Dummies help teach this: Abbr

• ER action, perhaps
• Lifeguard's technique, briefly
• EMT's frequent task
• Source of some chest thumping
• Red Cross course: Abbr.
• Lifeguard's skill, briefly
• Doc's response to a heart-stopping event
• EMT proficiency
• Training for EMTs

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
by 1979, abbreviation of cardiopulmonary resuscitation .