Final answer:
The subject is CPR techniques and the steps to take if the first breath does not make the chest rise and fall.
Explanation:
The subject of the question is CPR (cardiopulmonary resuscitation) techniques.
When administering CPR and the first breath does not make the chest rise and fall, the steps to follow include re-administering the breath, repositioning the head, checking the pulse, and placing the victim's arms across his chest.
It is crucial to ensure proper technique and follow the correct sequence of steps in CPR to increase the chances of successful resuscitation and provide effective emergency care.
Learn more about CPR techniques here:
https://brainly.com/question/47055574
