Which statement correctly describes key differences between adult and pediatric CPR in a wilderness setting?

• A. Adults: compress 2 inches (5 cm) depth at 100–120/min with a 30:2 compression-to-breath ratio; children/infants: shallower depth and smaller chest, with 100–120/min and a 15:2 ratio for two rescuers; use pediatric AED if available and call for help.
• B. Adults: compress 2 inches depth at 60–80/min with a 5:1 ratio; Children: the same 30:2; Use adult AED.
• C. Adults: 1 inch depth at 80/min; Children: 2 inches at 100/min; Use adult AED.
• D. Adults: rescue breaths only; no compressions.

Answer: (A)

Differences in CPR protocols between adults and children center on managing size and injury risk while keeping the same overall goal: deliver adequate chest compressions and provide breaths as needed. For an adult, the recommended depth is about 2 inches (5 cm) with a rate of 100–120 compressions per minute, and if you are the only rescuer, use a 30:2 compression-to-breath ratio. When two rescuers handle a child or infant, the chest is smaller, so compressions are shallower to avoid injury, but you still aim for a similar overall rate of 100–120 per minute, using a 15:2 ratio to minimize interruptions while delivering breaths. In this scenario, using a pediatric AED if available and calling for help early are emphasized to tailor defibrillation and support to a younger patient. This combination reflects how size, anatomy, and the practicality of rescue efforts influence depth, ratio, and the use of pediatric defibrillation. The other options mix incorrect rates, depths, or ratios, or suggest breaths only, which does not align with established CPR practice for adults or children in the wilderness.