What is the preferred technique for bag-valve-mask ventilation?

The preferred technique for bag-valve-mask ventilation is the two-person technique. This approach allows for more effective ventilation when performing CPR or in emergency situations. With two providers, one individual can maintain a proper airway seal by positioning the mask on the patient, while the other is responsible for squeezing the bag to deliver breaths. This collaboration enhances the efficiency of the ventilation process by ensuring that the airway is adequately sealed and that enough air is delivered with each breath.

Having a second rescuer also allows for better management of the patient's airway and can improve the overall effectiveness of positive pressure ventilation. The ability to have one person focus solely on maintaining the mask position and adjusting as necessary, while the other provides the breaths, results in a more effective and continuous ventilation process.

While a one-provider technique can be used in specific situations, it generally poses challenges in achieving a proper seal and delivering adequate breaths simultaneously. The other options, such as manual ventilation only or mouth-to-mouth breathing, are not appropriate in this context for various reasons, including safety concerns and effectiveness.