Which EEG Wave If Seen in an Awake Adult May

Question

Which EEG wave if seen in an awake adult may indicate a pathological condition?
A) alpha
B) beta
C) theta
D) delta
E) No waves should be seen in awake adults.

Accepted Answer

Delta waves are usually seen in slow wave sleep or during anesthesia. If they are seen in an awake adult, it may indicate a pathological condition such as brain damage or encephalopathy. Alpha, beta, and theta waves are all normal findings in awake adults under certain circumstances. No waves should not be seen in an awake adult as it indicates a flat EEG, which is indicative of brain death.