What is the primary purpose of using a bag-mask device?

The primary purpose of using a bag-mask device is to assist in maintaining adequate ventilation. This device is designed to deliver positive pressure ventilation to a patient who is not breathing adequately or at all. By creating a seal around the patient's mouth and nose, the bag-mask allows the rescuer to manually ventilate the patient by forcing oxygen into the lungs.

This method is critical in emergency situations where a patient's airway may be compromised, and it is essential to ensure that they receive enough oxygen to prevent hypoxia and other serious complications. The effectiveness of the bag-mask device relies on proper technique, including ensuring a good seal and delivering adequate tidal volume with each squeeze of the bag.

While there are various functions and capabilities of respiratory devices, providing humidified oxygen focuses more on the quality of the delivered oxygen rather than on ventilation itself. Ensuring proper intubation is unrelated to the use of a bag-mask device—intubation is a different procedure altogether that involves placing an endotracheal tube in the airway. Measuring airway pressure is also not a function of the bag-mask device; instead, this is typically done with specialized equipment designed to monitor ventilatory pressures. Hence, the primary goal of the bag-mask device is clearly linked to assisting ventilation, making