RPSGT RPSGT Sleep Disorders & Pathophysiology 2

Question 1

Which sleep-related breathing disorder involves cessation of both airflow and respiratory effort?

Accepted Answer

Central sleep apnea

Answer

Central sleep apnea is defined by cessation of both airflow and respiratory effort, as the brain fails to send signals to the breathing muscles.

Question 2

Kleine-Levin syndrome is best described as:

Accepted Answer

A recurrent hypersomnia with behavioral changes

Answer

Kleine-Levin syndrome is a rare disorder characterized by recurrent episodes of hypersomnia accompanied by cognitive, behavioral, and autonomic disturbances.

Question 3

The Multiple Sleep Latency Test (MSLT) is primarily used to diagnose:

Accepted Answer

Narcolepsy and idiopathic hypersomnia

Answer

The MSLT objectively measures daytime sleepiness and detects sleep-onset REM periods (SOREMPs), which are diagnostic criteria for narcolepsy.

Question 4

Confusional arousals, sleepwalking, and sleep terrors are all classified as:

Accepted Answer

NREM parasomnias

Answer

These are all disorders of arousal from NREM sleep, classified as NREM parasomnias, and typically arise from slow-wave sleep in the first third of the night.

Question 5

Which finding is required to score a hypopnea per AASM recommended (not acceptable) criteria?

Accepted Answer

≥30% reduction in airflow with ≥3% oxygen desaturation or arousal

Answer

The AASM recommended hypopnea rule requires ≥30% airflow reduction for ≥10 seconds with ≥3% oxygen desaturation or EEG arousal.

RPSGT Exam Practice Test

RPSGT Exam Practice Test

RPSGT RPSGT Sleep Disorders & Pathophysiology 2