The Passy-Muir valve is contraindicated in patients
a. who are trying to relearn normal breathing patterns.
b. who experience low secretions.
c. with laryngeal or pharyngeal dysfunction.
d. who want to speak while on the ventilator.
C
The Passy-Muir valve is contraindicated in patients with laryngeal or pharyngeal dysfunction, excessive secretions, or poor lung compliance.
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