Assisted ventilation is indicated for which of the following?

• A. Breathing normally
• B. Breathing 12 to 20 breaths per minute
• C. Breathing less than 8 or more than 24 breaths per minute
• D. The patient is apneic or not breathing adequately

Answer: (D)

Assisted ventilation is indicated when the patient cannot maintain adequate ventilation on their own. The crucial idea is whether breaths are effective for gas exchange. If the patient is apneic, there are no breaths to support, so artificial ventilation is needed. If the patient is breathing but doing so ineffectively—breaths are shallow or insufficient to clear CO2 and oxygenate the blood—you still need assistance to ensure adequate tidal volume and oxygen delivery. Breathing normally or having a normal rate (12–20 per minute) means ventilation is adequate, so there’s no need for assisted ventilation. A rate that’s too fast or too slow can signal distress, but it doesn’t by itself prove that ventilation is inadequate; you must assess effort, tidal volume, airway patency, and signs of poor oxygenation. In practice, you’d provide breaths with a bag-valve mask to achieve effective ventilation until spontaneous breathing improves or a definitive airway is established.