Mechanical Vent Test 3 Practice

If cuff pressure is measured at 41 cm H2O, what is the immediate intervention?

Reposition ETT Increase cuff to 50 cm H2O Release air from cuff Change to a larger ETT

Correct Answer:

Release air from cuff

Explanation:

Maintaining cuff pressure in a safe range is essential to protect the tracheal mucosa while still providing a seal. A cuff pressure of 41 cm H2O far exceeds the recommended maximum (about 20–25 cm H2O), and the immediate action is to release air from the cuff to lower the pressure to the safe range. After reducing the pressure, recheck with a cuff manometer to ensure it stays around 20–25 cm H2O and that there’s an adequate seal without compromising perfusion. High cuff pressures can impair mucosal blood flow and cause ischemia or injury, so lowering the pressure is the correct first step; if a proper seal isn’t achieved afterward, other adjustments may be considered, but the priority is reducing the cuff pressure.

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