Chapter·ENTSnoring and Sleep Apnea

Pathophysiology of Sleep-Disordered BreathingDownloads

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1

A 56-year-old woman with diabetes, hypertension, and hyperlipidemia is found to have an A1C of 11 despite her best attempts at diet and faithfully taking her metformin and glyburide. She reports severe fatigue and sleepiness in the daytime, which has limited her ability to exercise. On examination, she is obese, has a full appearing posterior pharynx, clear lungs, a normal heart examination, and trace bilateral edema. Her TSH is 2.0 m/L (normal). Before adding another oral agent or switching to insulin, what is the best next step?

AArrange for a sleep study to check the patient for obstructive sleep apnea.

BConsider prescribing a sleep aid to help her sleep better and increase her energy to exercise during the day.

CAssess for possible depression as a contributor to her fatigue.

DEducate the patient on sleep hygiene as a supportive measure to improve her overall well-being.

2

A 42-year-old obese male presented with disturbed sleep and daytime somnolence. All of the following are correct except?

AApnea with hypoxia

BPharyngeal muscle contraction increases OSA

CApnea with awakening

DApnea with fall in saturation

3

What is the primary regulator for the central chemoreceptor?

APartial pressure of oxygen (PaO2)

BCarbon dioxide (CO2)

CBicarbonate ions (HCO3-)

DHydrogen ions (H+)

+ 7 more in the PDF

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