How many rescuers are needed to use a bag valve mask most efficiently?

The use of a bag valve mask (BVM) is most efficient with two rescuers because this allows for effective and coordinated ventilation. One rescuer is responsible for maintaining a seal on the mask and ensuring it fits snugly on the patient’s face, which is crucial for delivering the appropriate volume of air without leakage. The second rescuer operates the bag, squeezing it to deliver breaths. This partnership allows for a more controlled and effective ventilation process compared to having one person attempt to do both tasks alone, which can lead to ineffective ventilation and patient safety issues. Each rescuer is able to focus on their specific task, leading to a more efficient and successful resuscitation effort.