In a cannot-ventilate cannot-intubate scenario, what is the preferred next step?

• A. Wait for spontaneous respiration to return.
• B. Switch to nasal cannula oxygen only.
• C. Immediately perform cricothyrotomy without attempting other steps.
• D. Use a rescue airway such as an LMA to ventilate while planning a definitive airway or cricothyrotomy if necessary.

Answer: (D)

In a cannot-ventilate cannot-intubate situation, the priority is to restore oxygenation and ventilation quickly while you prepare a definitive airway. A rescue airway, like a laryngeal mask airway, provides a fast, less invasive way to re-establish ventilation and oxygen delivery while you plan the next definitive step. It buys time, keeps the patient oxygenated, and allows you to assess whether a cricothyrotomy will be needed if ventilation cannot be maintained.

Waiting for spontaneous breathing is not reliable in this crisis, and relying on nasal cannula oxygen alone won’t ventilate the patient. Performing cricothyrotomy immediately without trying a rescue airway bypasses a step that can often restore ventilation rapidly and safely. If ventilation with the rescue airway fails or becomes impossible, you escalate to a surgical airway.