Practice Questions
(Polysomnography) Questions
with Correct Answers (VERIFIED)
Which filter would be used to adjust the rise time of a signal?—ANSWER--The HFF
What are some possible causes for secondary PLMS?—ANSWER--Blood iron deficiency
NPSG stands for_________________________.—ANSWER--Nocturnal polysomnogram.
Sleepwalking and night terrors are common in the ages of ______________.—ANSWER--3-
12 yrs old
A ________ study is used to look for seizure activity during sleep.—ANSWER--Nocturnal
seizure
The 60-Hz notch filter is used to eliminate _______________________.—ANSWER--Artifact
generated from electrical devices
On an EKG, the QRS complex represents ___________.—ANSWER--ventricular
depolorization (contraction)
A premature P wave in the EKG is referred to as a ___________________—ANSWER--PAC
, During bilevel titration, the ________ is sometimes used to treat central apneas.—ANSWER-
-Backup rate
What is it called when a person goes to bed early in the evening and wakes early in the
morning?—ANSWER--Advanced sleep phase syndrome
What is the minimum recording time for a study?.—ANSWER--6 hrs
How many naps does an MSLT consist of?—ANSWER--4-5
In an ECG the T wave represents ____________________.—ANSWER--Ventricular
repolarization
Antidepressants suppress which stage of sleep?—ANSWER--REM
A mixed apnea __________________.—ANSWER--starts with a central component that has
become obstructive.
The technician should log which patient information into the computer before the study?—
ANSWER--Study ID #
Sweat artifact looks like________________—ANSWER--Slow wave sleep
Nocturnal paroxysmal dystonia is characterized by________________—ANSWER--Sudden,
random, violent movements during NREM sleep.
BiPAP S/T stands for________________—ANSWER--Bilevel positive airway pressure
spontaneous/timed
When a signal starts blocking and squaring off at the top it is caused by________________—
ANSWER--The gain (sensitivity) being set too high
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