What is the basic CPR sequence for an adult, with an AED available?

• A. Immediately give 100 chest compressions per minute without breaths.
• B. Check responsiveness, call for help, perform 30 chest compressions at 100–120/min, give 2 breaths if trained, repeat cycles and use AED when ready.
• C. Only give breaths; no compressions.
• D. Call for help and wait for rescue team; no CPR.

Answer: (B)

Starting with quick assessment and calling for help, you then begin chest compressions without delay. Push hard and fast at about 100–120 compressions per minute, aiming for complete chest recoil, and perform 30 compressions before giving 2 breaths if you are trained to provide breaths. Repeat cycles of 30 compressions and 2 breaths, continuing until help arrives or the person regains a pulse. As soon as an AED is available, turn it on and apply the pads, then follow the device prompts to analyze and deliver a shock if advised. Keep CPR going and minimize interruptions while the AED is ready and in use.