Certified Flight Registered Nurse (CFRN)

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A flight nurse is managing a 58-year-old male patient intubated for respiratory failure. Suddenly, the ventilator's high-pressure alarm sounds, and the patient's oxygen saturation begins to drop. Using the DOPE mnemonic, which of the following potential causes corresponds to 'O'?

Endotracheal tube displaced into the esophagus Tension pneumothorax Mucus plug obstructing the endotracheal tube Ventilator circuit disconnection

Correct Answer:

Mucus plug obstructing the endotracheal tube

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