Robert has been feeling very tired the last few weeks and tells his doctor that he only sleeps two hours a night.Before making a diagnosis,his doctor asks Robert to spend a night in the sleep lab connected to an EEG.Several times that night Robert's brain waves have a low frequency and are large in amplitude.This indicates to the doctor that Robert is:

Question

Quizplus · Accepted Answer

Large amplitude, low frequency brain waves indicate deep stages of sleep, so Robert is experiencing several cycles through the deep stages of sleep. This may suggest that his lack of energy and fatigue is not due to a lack of sleep, but possibly an underlying medical condition.

Robert Has Been Feeling Very Tired the Last Few Weeks