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PSG Final exam with complete solutions 2024_2025
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PSG Final exam with complete solutions 2024_2025
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PSG Final exam with complete solutions2024/2025
The Ultradian process is - ANSWER-the balance between REM and NonREM sleep
Wakefulness is characterized by - ANSWER-higher sympathetic activity
Circadian rhythm is controlled by - ANSWER-hypothalamic suprachiasmatic
nucleus
In teenagers __________ is noted worldwide - ANSWER-phase delay sleep
Ohm's law states - ANSWER-Current equals voltage divided by resistance
Polarity is - ANSWER-the positive or negative nature of an electrical signal
the G1 electrode in a differential amplifier is the - ANSWER-exploring electrode
During a sleep study the G1 electrode has an input of 5uV and the G2 signal has
10uV - ANSWER--5
Using two ground leads will cause - ANSWER-ground loop
The EEG signal in a sleep study use a ________ montage - ANSWER-Referential
The minimal sampling rate accepted by the AASM for a digital polysomnographic
system is - ANSWER-200Hz
, The Occipital Protuberance in the International 10/20 Electrode Placement System
is known as - ANSWER-Inion
Your measurement from left pre-auricular to right pre-auricular is 36cm. C3 & C4
will be marked _________ down from Cz - ANSWER-7.2cm
The patient's head circumference measures 54cm. Fp1 will be marked at
________ from Fpz - ANSWER-2.7cm
These electrodes are used to monitor eye movements: - ANSWER-ROC & LOC
Leg leads are placed on the: - ANSWER-Anterior Tibialis muscles
The "preferred" EKG placement is : - ANSWER-1 electrode Right chest 3cm below
the Right clavicle and 1 electrode Left lower rib
The eye leads are placed: - ANSWER-1cm lateral and 1cm up/down
To find proper placement of the Anterior Tibialis electrodes you should: -
ANSWER-Have the patient flex his/her feet
The placement of the chin leads should be - ANSWER-One in the center of the
chin and the other 2cm down and 2cm left and right midline
The standard paper speed for a sleep studyis - ANSWER-10mm/sec
In a male patient what neck size is considered a contributing factor to sleep
apnea - ANSWER-17 in or greater
The two main accreditation organizations for sleep labs are - ANSWER-JACHO
and AASM
The acceptable impedance levels of the EEG during a sleep study is - ANSWER-
less than 5kOhms
The acceptable impedance levels for a EMG during a sleep study is - ANSWER-
less than 10kOhms
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