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PSG FINAL REVIEW QUESTIONS & ANSWERS RATED 100% CORRECT!!
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PSG FINAL REVIEW QUESTIONS & ANSWERS RATED 100% CORRECT!!
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PSG FINAL REVIEWQUESTIONS &
ANSWERS RATED
100% CORRECT!!
PSG
Evatee 9/27/24 PSG
,PSG FINAL REVIEW QUESTIONS & ANSWERS
RATED 100% CORRECT!!
What is used in a PSG to evaluate sleep? Answer - EEG, EKG, EMG, Respiratory
effort, EOG, Airflow, Oxygen saturation
What is the most common diagnosed sleep disorder? Answer - Insomnia at
about 1/3 of the population
How many cycles of sleep does a person average per night? Answer - Four to
five cycles
How often should REM occur? Answer - About every 90 minutes if sleep is
normal. Each cycle of REM is longer throughout each cycle of sleep.
What is a hyp0nogram? Answer - A graphical display of the organization of
sleep stages that occur in a night
Who usually interprets PSG studies? Answer - A pulmonologist is usually the
interpreting physician.
How many channels of EEG are recorded during a PSG? Answer - 6 channels
are standard, more can be used if seizures are suspected during sleep.
How many EOG channels are used during a PSG? Answer - 1 channel and 2
leads, one for each eye
, How many EMG channels are used during a PSG? Answer - 1 channel and 3
leads for the chin, 2 channels and 4 leads for the legs (2 on each leg)
What is the definition of sleep? Answer - a natural and periodic state of rest
during which consciousness of the world is suspended, not a loss of
consciousness.
What is the definition of sleep deprivation? Answer - lack of length,
consistency or type of sleep necessary.
What is the definition of sleep debt? Answer - the amount of time needed
minus the actual amount of sleep gotten.
How many traffic accidents per year are caused by drowsy drivers? Answer -
100,000 accidents
What percent of adults say that daytime sleepiness interferes with their work?
Answer - 50 %
Prior to the invention of the light bulb how much sleep did a person get?
Answer - The average american got 10 hours of sleep per night.
How much sleep does a person average in today's world? Answer - 6.5-7 hours
per night
What is the definition of circadian rhythm? Answer - The daily cycle of
biological activity influenced by the variations in the environment such as day
and night.
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