RPSGT study focus exam questions
with complete solutions18
Multiple Sleep Latency Test (MSLT) - ANSWERS-What does the acronym "MSLT" refer to?
A series of five nap opportunities is standard. - ANSWERS-How many nap opportunities are
usually included in the clinical MSLT protocol?
The first nap should start 1.5 to 3 hours after completing the polysomnogram. - ANSWERS-
When is the appropriate time to start the first MSLT nap?
The test should continue for 15 minutes following the first epoch of any sleep stage. -
ANSWERS-After sleep onset (defined as the first epoch scored as any stage of sleep) when
should the nap opportunity be terminated in a MSLT?
The test should be terminated after 20 minutes of recording. - ANSWERS-If no sleep occurs
during a nap opportunity in a MSLT, when should the test be terminated?
The first 30- second epoch scored as any stage of sleep. - ANSWERS-What is the definition of
sleep latency?
The elapsed time in minutes from the first epoch of sleep to the first epoch of REM sleep. -
ANSWERS-What is the definition of REM sleep latency?
The MSLT is performed for objective evaluation of daytime sleepiness. - ANSWERS-What is the
indication for performing a MSLT?
,Two hours after the start of the previous nap. - ANSWERS-What is the appropriate interval
between nap opportunities during the MSLT?
30 minutes. - ANSWERS-How long before a nap opportunity begins should the patient
discontinue smoking?
The test is recorded in 30-second epochs. - ANSWERS-What epoch length is used during a MSLT
recording?
The presence of pathological sleepiness. - ANSWERS-What does a meal sleep latency of <5
minutes during a MSLT generally indicate?
At least two naps. - ANSWERS-in order to confirm the diagnosis of narcolepsy using a MSLT, how
many nap opportunities must contain a sleep onset REM?
Excessive daytime sleepiness (EDS) or sleep attacks. - ANSWERS-What is usually the first
symptom of narcolepsy to emerge?
F4/M1 or F3/M2, C4/M1 or C3/M2, O2/M1 or O1/M2, E1, E2 Chin EMG, ECG. - ANSWERS-What
is the minimally required recording montage for the MSLT?
Sum of the individual sleep latencies for each nap divided by the total number of naps. -
ANSWERS-How is mean sleep latency calculated in the MSLT recording?
Every 2 hours. - ANSWERS-How frequently are nap opportunities scheduled during the MSLT?
The Multiple Sleep Latency Test (MSLT) and the Maintenance of Wakefulness Test (MWT) -
ANSWERS-What two tests are the only objective measures currently available to quantify
sleepiness in a patient?
, 20 Minutes. - ANSWERS-If sleep does not occur during a MSLT nap opportunity, how many
minutes are recorded after lights-out?
15 minutes - ANSWERS-In order to assess the occurrence of REM sleep during a MSLT, how
many minutes should the test continue after the first epoch of sleep?
Excessive daytime sleepiness, cataplexy, hypnagogic hallucinations and sleep paralysis. -
ANSWERS-What are the four major symptoms of narcolepsy?
Type II - ANSWERS-Type of portable monitor consisting of 8 channels, including: EEG, EOG, chin
EMG, ECG, airflow, respiratory effort, and oxygen saturation.
Minimum of 3 recorded channels. - ANSWERS-CMS definition of Type IV home sleep test.
An in-lab sleep study. - ANSWERS-If a home sleep test is negative in a patient with a high pretest
liklihood of having OSA, what is then indicated?
Severe pulmonary disease, neuromuscular disease, CHF, CSA, narcolepsy, PLMD, parasomnias,
circadian rhythm disorders. - ANSWERS-Contraindications for portable monitoring.
40 Minutes - ANSWERS-How long should an MWT nap last?
Maintenance of Wakefulness Test (MWT) - ANSWERS-Which sleep study measures the ability to
resist the urge to fall asleep?
Frontal, Central, & Occipital EEG; Left and right EOG; chin EMG; and ECG - ANSWERS-Which
channels are required in an MWT montage?
with complete solutions18
Multiple Sleep Latency Test (MSLT) - ANSWERS-What does the acronym "MSLT" refer to?
A series of five nap opportunities is standard. - ANSWERS-How many nap opportunities are
usually included in the clinical MSLT protocol?
The first nap should start 1.5 to 3 hours after completing the polysomnogram. - ANSWERS-
When is the appropriate time to start the first MSLT nap?
The test should continue for 15 minutes following the first epoch of any sleep stage. -
ANSWERS-After sleep onset (defined as the first epoch scored as any stage of sleep) when
should the nap opportunity be terminated in a MSLT?
The test should be terminated after 20 minutes of recording. - ANSWERS-If no sleep occurs
during a nap opportunity in a MSLT, when should the test be terminated?
The first 30- second epoch scored as any stage of sleep. - ANSWERS-What is the definition of
sleep latency?
The elapsed time in minutes from the first epoch of sleep to the first epoch of REM sleep. -
ANSWERS-What is the definition of REM sleep latency?
The MSLT is performed for objective evaluation of daytime sleepiness. - ANSWERS-What is the
indication for performing a MSLT?
,Two hours after the start of the previous nap. - ANSWERS-What is the appropriate interval
between nap opportunities during the MSLT?
30 minutes. - ANSWERS-How long before a nap opportunity begins should the patient
discontinue smoking?
The test is recorded in 30-second epochs. - ANSWERS-What epoch length is used during a MSLT
recording?
The presence of pathological sleepiness. - ANSWERS-What does a meal sleep latency of <5
minutes during a MSLT generally indicate?
At least two naps. - ANSWERS-in order to confirm the diagnosis of narcolepsy using a MSLT, how
many nap opportunities must contain a sleep onset REM?
Excessive daytime sleepiness (EDS) or sleep attacks. - ANSWERS-What is usually the first
symptom of narcolepsy to emerge?
F4/M1 or F3/M2, C4/M1 or C3/M2, O2/M1 or O1/M2, E1, E2 Chin EMG, ECG. - ANSWERS-What
is the minimally required recording montage for the MSLT?
Sum of the individual sleep latencies for each nap divided by the total number of naps. -
ANSWERS-How is mean sleep latency calculated in the MSLT recording?
Every 2 hours. - ANSWERS-How frequently are nap opportunities scheduled during the MSLT?
The Multiple Sleep Latency Test (MSLT) and the Maintenance of Wakefulness Test (MWT) -
ANSWERS-What two tests are the only objective measures currently available to quantify
sleepiness in a patient?
, 20 Minutes. - ANSWERS-If sleep does not occur during a MSLT nap opportunity, how many
minutes are recorded after lights-out?
15 minutes - ANSWERS-In order to assess the occurrence of REM sleep during a MSLT, how
many minutes should the test continue after the first epoch of sleep?
Excessive daytime sleepiness, cataplexy, hypnagogic hallucinations and sleep paralysis. -
ANSWERS-What are the four major symptoms of narcolepsy?
Type II - ANSWERS-Type of portable monitor consisting of 8 channels, including: EEG, EOG, chin
EMG, ECG, airflow, respiratory effort, and oxygen saturation.
Minimum of 3 recorded channels. - ANSWERS-CMS definition of Type IV home sleep test.
An in-lab sleep study. - ANSWERS-If a home sleep test is negative in a patient with a high pretest
liklihood of having OSA, what is then indicated?
Severe pulmonary disease, neuromuscular disease, CHF, CSA, narcolepsy, PLMD, parasomnias,
circadian rhythm disorders. - ANSWERS-Contraindications for portable monitoring.
40 Minutes - ANSWERS-How long should an MWT nap last?
Maintenance of Wakefulness Test (MWT) - ANSWERS-Which sleep study measures the ability to
resist the urge to fall asleep?
Frontal, Central, & Occipital EEG; Left and right EOG; chin EMG; and ECG - ANSWERS-Which
channels are required in an MWT montage?
