RPSGT certification
Terms
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- What does MSLT stand for?
- Multiple Sleep Latency Test
- How many naps are typically given for an MSLT?
- 4-5
- When does the 1st nap begin once the MSLT has started?
- 1.5-3 hours on the hour or half hour after nocturnal recording
- After sleep onset occurs, When is the nap terminated?
- 15 minutes from first epoch of sleep
- If there is no sleep noted when is the nap terminated?
- 20 minutes
- Sleep Latency is defined as:
- The amount of time from lights out to the 1st epoch of sleep
- REM Latency is defined as:
- The amount of time from the 1st epoch of sleep to the 1st epoch of REM
- What is the purpose of perfomring the "MSLT"?
- To assess & diagnose diseases of excessive somnolence and to evaluate daytime sleepiness
- How far apart do the naps occur?
- every two hours on the half hour or hour from the start of the first nap
- How long before a nap begins should the subject cease smoking?
- 30 minutes
- What epoch size is best for recording the "MSLT"?
- 30 sec epochs
- A mean sleep latency of <5 minutes during the "MSLT" indicates what?
- Pathological sleepiness
- A normal mean sleep latency is how many minutes?
- 10-20 minutes
- How many naps must have unequivocal periods of REM to arrive at a diagnosis of Narcolepsy?
- 2 naps
- What is the Narcoleptic Tetrad?
-
Excessive Daytime Sleepiness
Hypnogognic Hallucinations
Sleep Paralysis
Cataplexy - What montage is generally used for recording the "MSLT"?
- The core channels; 2 EOG, 4EEG Chin, EMG, EKG
- How is the mean sleep latency calculated?
- add up sleep latency and divide by total # of naps
- How is the median sleep latency calculated?
- The middle number
- How is the mean REM latency calculated?
- Add up REM latency and divide by total REM periods that occured
- How frequent are the naps scheduled during the MSLT
- 2 hours