When using a resuscitation mask on an adult, what is the correct sequence?

When using a resuscitation mask on an adult, what is the correct sequence?

• A. Seal the mask, open the airway, and then blow into the one-way valve
• B. Open the airway, seal the mask, blow into the valve
• C. Seal the mask and blow without opening airway
• D. Check pulse first, then seal mask

Answer: (A)

The correct sequence is to first create a tight seal on the resuscitation mask over the adult’s mouth and nose. A proper seal prevents air from escaping and ensures breaths reach the lungs. Next, open the airway—using a head-tilt, chin-lift (or a jaw-thrust if spinal injury is a concern)—so air can flow into the lungs. Finally, deliver the breaths through the one-way valve. Opening the airway before delivering breaths is essential for effective ventilation; sealing the mask first ensures those breaths actually go into the lungs rather than leaking out.

The correct sequence is to first create a tight seal on the resuscitation mask over the adult’s mouth and nose. A proper seal prevents air from escaping and ensures breaths reach the lungs. Next, open the airway—using a head-tilt, chin-lift (or a jaw-thrust if spinal injury is a concern)—so air can flow into the lungs. Finally, deliver the breaths through the one-way valve. Opening the airway before delivering breaths is essential for effective ventilation; sealing the mask first ensures those breaths actually go into the lungs rather than leaking out.