As the single EMT managing an apneic patient's airway, the preferred initial method of providing ventilations is:

• A. Mouth-to-mouth technique.
• B. Mouth-to-mask technique with a one-way valve.
• C. Manually triggered ventilation device.
• D. One-person bag-valve mask.

Answer: (B)

When you’re the only rescuer, getting breaths in quickly and safely matters most. A mouth-to-mask setup with a one-way valve provides a quick, reliable seal and a barrier between you and the patient’s air, protecting you from exposure while you ventilate. The one-way valve also minimizes contamination and makes delivering breaths more controllable than direct mouth-to-mouth, which offers no barrier and carries higher risk of transmission.

A manually triggered ventilation device can be useful but often requires extra steps or equipment and isn’t as immediately deployable for a lone rescuer. A one-person bag-valve mask delivers good ventilation but maintaining a proper seal and coordinating squeeze and seal with one hand can be challenging, potentially delaying initial ventilation. That combination of speed, protection, and reliable ventilation is why mouth-to-mask with a one-way valve is the preferred initial method.