Which of the following is needed to connect a bag mask (BVM) or CPR mask to an emergency oxygen system?

To connect a bag mask or CPR mask to an emergency oxygen system, an adapter valve is essential. The adapter valve allows for a secure connection between the bag mask and the oxygen supply, ensuring that the oxygen can be delivered effectively to the patient. The valve serves to regulate the flow of oxygen and facilitate the proper administration of rescue breaths.

Using an adapter valve helps to ensure that the equipment is compatible with the various oxygen systems in use, providing a safe and efficient way to administer oxygen during a medical emergency. This equipment is critical for effective ventilation, especially in situations where a patient is not breathing adequately on their own.

While other equipment might be important in different contexts—such as an oxygen mask for patient use, an intel port for data connections, or a pressure gauge for monitoring oxygen levels—none fulfill the specific role of connecting a BVM or CPR mask to the oxygen system as effectively as an adapter valve.