A client with depression tells a nurse that he is to "have a test that involves the recording of an electroencephalogram (EEG) throughout the night." The nurse most likely identifies this testing as which of the following?
A) Sleep deprivation EEG
B) Polysomnography
C) Evoked potentials
D) Functional magnetic resonance imaging
Ans: B
Polysomnography is a special procedure that involves recording an EEG throughout a night of sleep. A sleep deprivation EEG involves keeping a client awake the night before the EEG evaluation. Evoked potentials measure changes in electrical activity of the brain as a response to a given stimulus. Functional magnetic resonance imaging creates images of changes in blood flow.
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