MCQ – 88945


A 47-year-old man is brought to the emergency department 30 minutes after he was involved in a motor vehicle collision. On arrival, he is unconscious and unresponsive to painful stimuli. His pulse is 120/min, respirations are 10/min, and his blood pressure is 88/60 mm Hg. Infusion of 0.9% saline is begun, and intubation is attempted without success. Pulse oximetry on 20 L/min of oxygen via bag-mask shows an oxygen saturation of 78%. The next appropriate step in the management of this patient involves passing a tube through an incision in which of the following structures?

A. Buccopharyngeal fascia


Investing layer of deep cervical fascia


Cricotracheal ligament


Prevertebral layer of deep cervical fascia

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