RPSGT RPSGT Sleep Disorders & Pathophysiology

Question 1

Which sleep disorder is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep?

Accepted Answer

Obstructive sleep apnea

Answer

Central sleep apnea

Answer

Sleep-related hypoventilation

Answer

Cheyne-Stokes respiration

Question 2

What is the minimum AHI threshold for diagnosing moderate obstructive sleep apnea per AASM criteria?

Accepted Answer

15 events/hour

Answer

5 events/hour

Answer

30 events/hour

Answer

50 events/hour

Question 3

Narcolepsy type 1 is distinguished from narcolepsy type 2 primarily by the presence of:

Accepted Answer

Cataplexy

Answer

Excessive daytime sleepiness

Answer

Sleep paralysis

Answer

Hypnagogic hallucinations

Question 4

Which condition is characterized by an irresistible urge to move the legs, typically worse at rest and in the evening?

Accepted Answer

Restless legs syndrome

Answer

Periodic limb movement disorder

Answer

REM sleep behavior disorder

Answer

Sleep-related leg cramps

Question 5

Central sleep apnea with Cheyne-Stokes breathing is most commonly associated with which underlying condition?

Accepted Answer

Congestive heart failure

Answer

Obesity

Answer

Nasal obstruction

Answer

Hypothyroidism

Question 6

What polysomnographic finding is pathognomonic for REM sleep behavior disorder (RBD)?

Accepted Answer

REM sleep without atonia

Answer

Increased slow-wave sleep

Answer

Sleep-onset REM periods

Answer

Elevated AHI during REM