A patient diagnosed with obstructive sleep apnea would have which of the following poly-somnographic testing results?
a. 8 apnea periods, of 4 to 8 seconds' dura-tion, per hour of sleep and an SpO2 of 90% to 93%
b. 20 apnea periods, of 5 to 9 seconds' dura-tion, per hour of sleep, with no arousals
c. 15 apnea periods, of 15 to 20 seconds' duration, per hour of sleep and bradycar-dia
d. 5 apnea periods, of approximately 8 sec-onds' duration each, per hour of sleep, with snoring
ANS: C
This patient has more than 5 apnea periods per hour of sleep with each episode lasting more than 10 seconds, along with bradycardia.
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