When explaining an upcoming test, a polysomnography, the nurse should include which of the following education related to equipment placements the patient will have placed on his or her person during the sleep study? Select all that apply
A)
An ECG with lots of chest leads will monitor heart rate and rhythm.
B)
A pulse oximeter placed on a finger is used to determine arterial oxygen saturation.
C)
An EOG will be placed on the skin near the eye to record eye movements.
D)
An EMG patch will be placed under the chin to record muscle movement.
E)
An actigraph device will be placed on the wrists and ankles to measure body motion.
Ans:
A, B, C, D
Feedback:
The ECG, which measures heart rate, is used to detect cardiac rhythm disorders, and the pulse oximeter is used to determine arterial oxygen saturation, which indicates adequacy of ventilation. The EOG, which records eye movements, and the EMG, which records muscle movement, will also be attached. During REM sleep, the eyes move rapidly, but the muscles are paralyzed. Periods during which the EOG recorded lots of movement, and the EMG recorded very little, would indicate REM sleep. An actigraph device will be placed on the wrists and ankles to measure body motion for obtaining objective measurements of sleep duration.
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