Final answer:
The first thing to do for child (1-puberty) BLS is to check for responsiveness and perform CPR if needed.
Step-by-step explanation:
The first thing to do for child (1-puberty) BLS is to check for responsiveness. Tap the child gently and shout to see if they respond. If the child doesn't respond, they may be unconscious and in need of immediate medical attention. In this case, you should call emergency services and start performing CPR.
CPR stands for Cardiopulmonary Resuscitation, and it is an emergency procedure that involves chest compressions and rescue breaths to maintain blood circulation and oxygen flow. CPR should be performed until medical professionals arrive.
Remember, it is important to receive proper training in BLS and CPR techniques before attempting them. You can take a CPR course to learn the correct procedures and gain the confidence to handle emergency situations.