With respect to CPR and foreign body airway obstruction procedures, a child should be treated as an adult once:

• A. After puberty has completed
• B. After growth plates have closed
• C. After secondary sexual characteristics have developed
• D. After age 18

Answer: (C)

The key idea is that when to switch from pediatric to adult CPR and FBAO techniques depends on physiologic maturity, not a fixed age. Puberty marks a point where airway and chest dimensions become more like an adult’s, so the adult-style maneuvers are appropriate once secondary sexual characteristics have developed. This reflects real changes in airway size, thoracic anatomy, and tissue consistency that affect how you perform chest compressions and airway management. Growth plate closure or waiting until age 18 aren’t reliable indicators of when the anatomy is truly adult-like, since individuals vary widely in development. So, the best cue is the appearance of secondary sexual characteristics, signaling puberty and the shift to adult technique. It’s still important to follow current CPR guidelines, which emphasize treating based on biological maturity rather than a strict age cutoff.