What is the appropriate flow rate for administering breaths with a BVM?

The appropriate flow rate for administering breaths with a Bag-Valve-Mask (BVM) is generally 15 liters per minute (lpm) or higher. This flow rate ensures that there is enough oxygen delivered effectively to the patient while preventing any potential rebreathing of exhaled air. The recommended flow of 15 lpm is suitable for adults, as it allows for adequate positive pressure ventilation and ensures that the bag is adequately filled to facilitate effective delivery of breaths.

Using a flow rate of 15 lpm or more also accommodates various clinical situations where rapid delivery of oxygen may be necessary. It aims to maintain a high concentration of oxygen available for the patient, which is critical in emergency situations where hypoxia might occur. At this flow rate, the BVM can achieve a sufficient tidal volume to ensure ventilation support while minimizing the risk of barotrauma, as the delivered pressures are managed appropriately.

In situations where higher levels of flow are considered, increasing the flow to 20 lpm or 25 lpm can lead to excessive pressures that may not be necessary and could result in complications for the patient, such as over-inflation of the lungs. Therefore, the correct understanding of the appropriate flow rate promotes effective ventilation and patient safety during