On palpating the neck region of a patient on a mechanical ventilator, you notice a crackling sound and sensation. What is the most likely cause of this observation?

Question

Quizplus · Accepted Answer

The crackling sound and sensation on palpating the neck region indicate subcutaneous emphysema, which is caused by air that has leaked into the connective tissue that lies beneath the skin. This can occur due to trauma, injury, or mechanical ventilation. Subcutaneous emphysema can also cause swelling and a "crackling" sensation when pressure is applied to the affected area.

On Palpating the Neck Region of a Patient on a Mechanical