18229940
Description
Quiz by Tyler Berge, updated more than 1 year ago
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Created by Tyler Berge
about 5 years ago
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Question 1
Question
The E2 electrode is placed out and up from the outer canthus of the right eye, and E1 is placed out and down from the outer canthus of the left eye. If the E2 channel on the PSG is channel 4, and E1 is channel 5, what will the waves on these channels do when the patient looks up?
Answer
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Move toward each other
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Both move up
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Both move down
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Move away from each other
Question 2
Question
What is the purpose of the low-frequency filter?
Answer
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Eliminating undesired fast frequencies
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Eliminating undesired slow frequencies
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Adjusting signal amplitude
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Calibrating DC amplifiers
Question 3
Question
What should a technician do first to make sure the proper test is being performed?
Answer
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Contact the physician
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Review the chart for the physician's order
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Ask the patient for a chief complaint
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Perform physiological calibrations
Question 4
Question
The symbol "G1" represents
Answer
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The exploring electrode
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The reference electrode
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The patient ground
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The output of a differential amplifier to the PSG
Question 5
Question
If G1 receives a signal of -100 µV at the same time G2 receives a signal of -50 µV, what is the output signal?
Answer
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-50 µV
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+50 µV
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-150 µV
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+150 µV
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