Q1.Before placing a Passy-Muir Valve on a tracheostomized patient, the tracheostomy cuff must be:
- A.Fully inflated
- B.Partially inflated
- C.Fully deflated
- D.Removed entirely
Show answer & rationale
Correct: C. The PMV is a one-way valve; on exhalation, air is redirected up through the vocal folds. This requires a fully deflated cuff so air can pass around the trach tube.