In pediatric CPR, at what stage is a child considered to have transitioned into an adult?

In pediatric CPR, a child is considered to transition into an adult at the onset of puberty. This stage marks significant physiological changes and the development of secondary sexual characteristics, which signal the transition from childhood to adolescence. CPR guidelines recognize this developmental stage because the emergency response may differ for adolescents compared to younger children.

The distinction is important as it aligns with the training and techniques required for effective CPR. Understanding when a child reaches this critical point helps lifeguards and responders apply the appropriate protocols based on age and developmental stage to provide the most effective care. In contrast, the other options do not accurately represent this transitional phase, as age alone or weight does not define when a child psychologically and physically shifts into adulthood in the context of CPR practices.