EEG Boards Review Questions

A family history of epilepsy is especially important to determine the diagnosis of __. a. complex partial seizures b. pseudo-seizures c. Lennox-Gastaut syndrome d. classic absence seizures - Answer- d. classic absence seizures The EEG of an aphasic patient whose CT scan reveals a subdural hematoma is most likely to show ____. a. right temporal spike and wave focus b. attenuation of background in the left hemisphere c. left hemispheric PLEDs d. generalized polyspikes - Answer- b. attenuation of background in the left hemisphere 102. Intracerebral hemorrhage from the middle cerebral artery would most likely produce an EEG finding of ____. a. periodic bursts of high amplitude theta activity over the ipsilateral hemisphere. b. delta activity maximal over the frontotemporal area of affected hemisphere c. spike and wave complexes over the affected hemisphere d. alpha coma - Answer- b. delta activity maximal over the frontotemporal area of affected hemisphere 103. A diagnosis of an astrocytoma in the left frontal lobe is most likely to produce which of the following EEG findings? a. generalized polymorphic delta activity b. focal delta activity in the right hemisphere c. left frontal focal spike activity d. left frontal burst suppression - Answer- c. left frontal focal spike activity 104. This type of EEG activity most often appears in association with rapidly growing tumors such as glioblastoma multifor′me and cerebral metastatic lesions. a. polymorphic delta activity b. beta asymmetry c. spike and wave d. epileptiform discharges - Answer- a) polymorphic delta activity What disease is consistent with an EEG that has 1-1.5 Hz triphasics, in addition to progressive mental deterioration for six months with ataxia and muscle wasting? - Answer- C