Which of the following motor disorders of sleep can be life threatening?
A)
Narcolepsy
B)
Periodic limb movement disorder
C)
Obstructive apnea
D)
Restless legs syndrome
Ans:
C
Feedback:
Obstructive apnea causes poor ventilation, poor-quality sleep, and daytime sleepiness, at best. At worst, it can contribute to depression, auto- and work-related accidents, cardiac dysrhythmias, and hypertension. Severe apnea can lead to pulmonary hypertension, polycythemia, or cor pulmonale. Periodic limb movement disorder and restless legs syndrome, although distressing and possibly indicative of a disease, are not of themselves life threatening. Narcolepsy is not a motor disorder of sleep.
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