Diagnosis of obstructive sleep apnea (OSA) algorithm

OSA: obstructive sleep apnea; AHI: apnea-hypopnea index.
* Excessive daytime sleepiness is a common complaint with multiple potential causes. For additional information, refer to UpToDate topic text on the evaluation of excessive daytime sleepiness.
¶ Mission-critical workers should only have in-laboratory polysomnography (not home sleep apnea testing).
Δ Such as resistant hypertension, unexplained pulmonary hypertension, or secondary polycythemia.