EEG Registry Part 2, Test Prep
EEG Registry Part 2, Test Prep The absence of sleep cycling in a 37 week conceptional age infant. a. Abnormal b. Normal Clear EEG differences between wakefulness and sleep emerge at about 36-37 weeks C.A. What artifact might be seen in a sleep deprived patient or a patient with Narcolepsy? Select one: a. REM in the frontal and anterior temp leads b. Asymmetrical eye movements c. ERG d. Amplitude asymmetries Midline theta rhythm is a 5-7 Hz "spiky" waveform which occurs in the frontocentral vertex head regions and is found in what percent of the general population? Select one: a. 20-40% b. 50% c. 25% d. 10% e. 1% Which of the following medications can commonly cause increased theta and beta activity at therapeutic doses? Select one: a. chloral hydrate b. antidepressants c. antihistamines d. analgesics Antidepressants Since a common ground electrode placement is at Fpz, ground lead recording artifact usually manifests itself as ________________. Select one: a. Alpha at Fpz b. Eye blink artifact in an illogical location, where an electrode has high impedance c. rhythmic theta in the occipitals d. 60 Hz at Fpz
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