Question 1
During a polysomnogram, the EEG recording shows sleep spindles and K-complexes. These features are characteristic of which sleep stage?
Show answer & explanation
Correct answer: B - Stage N2
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The CCSH exam has 100 questions and runs 3 hours.
These 10 free CCSH questions are organized by exam domain, so you can see how each part of the Certification in Clinical Sleep Health (CCSH) blueprint is tested. Reveal the answer and explanation under each question.
During a polysomnogram, the EEG recording shows sleep spindles and K-complexes. These features are characteristic of which sleep stage?
Correct answer: B - Stage N2
A person who has been awake for 22 hours feels a strong, mounting pressure to sleep. According to the two-process model of sleep regulation, this increasing pressure is BEST explained by:
Correct answer: A - The homeostatic sleep drive
An adult patient's diagnostic polysomnogram reveals an apnea-hypopnea index (AHI) of 28 events per hour. How should this obstructive sleep apnea be classified?
Correct answer: C - Moderate
A 24-year-old reports irresistible daytime sleep attacks and episodes of sudden, brief bilateral weakness in the knees that occur when he laughs. These laughter-triggered episodes of weakness are known as:
Correct answer: D - Cataplexy
The wife of a 67-year-old man with early Parkinson's disease reports that he shouts, punches, and kicks during sleep as if acting out his dreams, and he can recall the dream content afterward. Which disorder is MOST likely?
Correct answer: B - REM sleep behavior disorder
During a sleep study, a patient with congestive heart failure shows a repeating crescendo-decrescendo pattern of breathing followed by central apneas. This breathing pattern is known as:
Correct answer: D - Cheyne-Stokes breathing
Which measurement obtained during a patient intake is MOST relevant to assessing risk for obstructive sleep apnea?
Correct answer: B - Neck circumference
A patient's blood pressure remains poorly controlled despite adherence to three antihypertensive medications. Screening for which sleep disorder is MOST appropriate?
Correct answer: C - Obstructive sleep apnea
A patient is suspected of having narcolepsy. Which test is MOST appropriate to evaluate for this condition?
Correct answer: A - Multiple Sleep Latency Test (MSLT)
A patient with a high pretest probability of obstructive sleep apnea has a negative (normal) home sleep apnea test. What is the MOST appropriate next step?
Correct answer: D - Refer for in-laboratory polysomnography
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