Answer:
Two rescuers should operate the BVM when at all possible.
Explanation:
A bag valve mask (BVM) is defined as a hand-held device which is used for the patients who are facing difficulty while breathing by providing pressure ventilation to the patients.
Cardiopulmonary resuscitation is used to treat cardiac arrest by restoring breathing and spontaneous blood circulation in a person.
BVM is operated best when two rescuers should operate the BVM when at all possible, it helps one rescuer to create and maintain a mask seal.
