Medical Emergencies · single question
How is obstructive sleep apnea definitively diagnosed?
Show answer and explanation
Correct answer: A. Overnight (nocturnal) sleep study — polysomnography
- A. Correct. Polysomnography (overnight sleep study) is the gold standard, quantifying apnea–hypopnea events, oxygen desaturation, etc.
- B. Incorrect. A panoramic film evaluates teeth/jaws, not sleep-disordered breathing.
- C. Incorrect. Cephalometrics can assess airway/skeletal anatomy but cannot diagnose apnea events; PSG is required.
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