Possible Clues:

• 'ER' skill
• ER skill practiced on a doll
• EMT's treatment
• E.M.T.'s training
• Subject for EMT training
• E.M.T. application
• Revivalist movements, briefly?
• Doing it will often break a few ribs
• Some chest-pumping, for short
• Paramedic's work, in brief