An adult patient has an AHI of 22 events/hour with an oxygen desaturation nadir of 82%. How would this be classified by AASM severity criteria?

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Multiple choice — select the best answer

AMild OSA
BBorderline normal
CMild OSA with hypoxemia
DModerate OSA

✓ Correct answer: D. Moderate OSA AHI 15–29.9 events/hour defines moderate OSA. Mild OSA is 5–14.9, and severe OSA is ≥30 events/hour. The oxygen nadir does not alter the AHI-based severity classification.

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An adult patient has an AHI of 22 events/hour with an oxygen desaturation nadir of 82%. How would this be classified by AASM severity criteria?

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