What are the basic steps of performing adult CPR with an AED in the field?

• A. Check breathing only and wait for EMS.
• B. Place hands on chest and perform rescue breaths only.
• C. Verify responsiveness, call for help, start chest compressions at 100-120/min.
• D. Verify responsiveness, call for help, start chest compressions at 100-120/min, use AED as soon as available, follow prompts.

Answer: (D)

This question tests the proper sequence and timing of actions for adult CPR with an AED in the field. The best approach is to quickly verify the person is unresponsive, call for help to activate EMS and obtain an AED, then begin high-quality chest compressions without delay. Compressions should be performed at a rate of 100–120 per minute with full chest recoil between pushes. As soon as an AED is available, turn it on and follow its prompts for analysis and defibrillation if advised. After the shock (or if no shock is advised), continue CPR immediately until help arrives or the person shows signs of life. This sequence emphasizes rapid initiation of compressions and timely defibrillation, which are critical for survival.