A patient with central sleep apnea uses a nasal mask with NIV at night. The patient complains of nasal congestion. What action should the respiratory therapist take?
a. Reduce the EPAP.
b. Add a heated humidifier.
c. Switch to a mouthpiece.
d. Add a heat/moisture exchanger.
ANS: B
NIV can cause excessive drying of the nasal mucosa, which has been associated with nasal con-gestion and increased nasal resistance. A heated humidifier can significantly reduce the dryness that causes congestion. Use of an HME is inappropriate, because it would lead to increased WOB.
Health Professions
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