Why does the compression to drying ratio for pediatric CPR depend on the number of rescuers?

When performing CPR on a child, why is it that compressions and ventilations are coordinated in a 30:2 ratio for one rescuer and 15:2 ratio for two rescuers; but, when performing CPR on an adult, the ratio remains 30:2 for both one and two rescuers?
Answers:
Just to reconcile with the certainty that children normally breath faster than adults because of their smaller lungs and airways and so their lesser volume capacity for nouns.

15:2 would be too exhausting for one rescuer to do; its advisable only with 2 rescuers in pediatric victims. As for adults, within are considerations on minimizing interruptions for chest compressions. In older guidelines it used to be 15:2 also for adults but later studies found that its only after the 10th compression that blood in reality reaches the brain, making 15:2 ineffective and so it was revised to the present 30:2. Source(s): BLS cert.

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