Diagnostic Evaluation of Patients with Suspected OSAS

1. History
   • typical sleep-wake cycle
   • quality of sleep
   • medication ingestion
   • habits (tobacco, caffeine, alcohol)
   • stressors
   • exercise
   • sleep environment
   • associated symptoms (morning headache, dry mouth, snoring)
   • family history of sleep disorders
2. Physical Examination
   • HEENT
   • Hypertension
   • body habitus
   • neck size
   • cardiac exam
   • mental status
   • thyroid abnormalities
   • neuropathy
3. Sleep Questionnaire and Diary
4. Nocturnal Polysomnography
   • ambulatory vs. laboratory
   • AHI
   • arousal index
   • desaturations
   • arrhythmias