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7378 Medicine

Hypopnea is defined as?

A> 10% reduction in airflow for at least 10 seconds with > 1% desaturation on arousal
B> 20% reduction in airflow for at least 10 seconds with > 2% desaturation on arousal
C> 30% reduction in airflow for at least 10 seconds with > 3% desaturation on arousal (Correct Answer)
D> 40% reduction in airflow for at least 10 seconds with > 4% desaturation on arousal