
INTRO TO POLYSOMN & CHANELS
Authored by Karen Vargas
Science
University
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A patient on PSG shows frequent arousals but no oxygen desaturation. What channel should the technologist check next?
Oxygen saturation
EEG
Nasal airflow
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A patient undergoing Level III sleep study must have at least which parameters?
EEG and video
Airflow, oximetry, chest effort
Leg EMG
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A technologist notes paradoxical chest and abdominal movement during apnea. What is this?
Central apnea
Obstructive apnea
Complex apnea
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During PSG, the technologist increases low-frequency filter to 1 Hz. Why?
To reduce sweating artifacts
To detect apnea better
To amplify K-complexes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A patient’s EEG shows K-complexes with spindles. Which stage of sleep is this?
N1
N2
N3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A patient with obesity hypoventilation syndrome is suspected. Which channel provides best supporting data?
Body position
Capnography
ECG
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A PSG shows apnea without thoracic effort. What type of apnea is this?
Central
Obstructive
Mixed
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