C&P Service Clinician's Guide

Obstructive is due to collapse and occlusion of the upper airway of the oropharynx, and snoring is a common symptom. Central is due to a transient abolition of central ventilatory drive, which causes a chronic alveolar hypoventilation. Mixed sleep apnea combines features of both types. b. Report whether: there is a tracheostomy; ................
................