What is the primary use of a BVM?

The primary use of a Bag-Valve-Mask (BVM) is for rescue breathing. A BVM allows a rescuer to provide positive pressure ventilation to a patient who is not breathing adequately or at all. When used properly, it can effectively deliver oxygen-rich air directly into the patient’s lungs, thereby ensuring oxygenation and preventing further complications related to hypoxia.

In a lifeguarding or emergency context, the BVM is often utilized when a person is in a critical condition and needs immediate respiratory support. Rescuers are trained to use this device along with supplemental oxygen to maximize its effectiveness. The device consists of a self-expanding bag, a unidirectional airway valve, and a mask that forms a seal on the face, enabling the rescuer to deliver breaths efficiently and safely.

Using a BVM requires understanding and skill, as proper technique is essential to make sure air is effectively delivered and to minimize the risk of complications such as aspiration. This contrasts with other options which do not involve providing respiratory support in the same manner, emphasizing the specific role of the BVM within emergency response.