Medical Emergencies · single question

A patient with suspected sleep apnea presents. What is the most appropriate diagnostic test?

  1. Overnight sleep study/ Polysomnography
  2. Pulse oximetry
  3. Chest X-ray
  4. Home sleep test (HST)
Show answer and explanation

Correct answer: A. Overnight sleep study/ Polysomnography

An overnight sleep study (polysomnography) is the gold standard for diagnosing obstructive sleep apnea (OSA). It measures multiple parameters, including oxygen levels, airflow, and brain activity, to confirm the diagnosis.

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