'Sleep apnea' is defined as a temporary pause in breathing during sleep lasting at least?: (A) 40 seconds, (B) 30 seconds, (C) 20 seconds, (D) 10 seconds
Answer is D. Apneas in OSA are defined in adults as breathing pauses lasting >10 s assosciated with 3% decrease SaO2 Hypopneas is defined as >30% decrease in airflow for >10 sec associated with 3% decrease in SaO2.