In a patient with epileposy, which region of focus (by lobe of the brain) is known to have the
greatest incidence of NORMAL EEG? - (Correct Answer)-Frontal Lobe
Seizures from here don't always show up on the EEG
Catamenial Epilepsy - What is it? - (Correct Answer)-Includes women whose seizures are
exacerbated by their menstrual cycle.
Women with catamenial epilepsy are unusually sensitive to endogenous hormonal changes. This
seizure exacerbation has a statistically significant positive correlation to serum estradiol/estrogen
levels and ratios.
GAMMA
A gamma wave is a pattern of neural oscillation in humans with a frequency between ___ and
___ Hz, though ___ Hz is typical.
(Related to depth of anesthesia (patient state index) - (Correct Answer)-A gamma wave is a
pattern of neural oscillation in humans with a frequency between *25* and *100* Hz, though
*40* is typical.
What is the most common artery that infarction, emboli, ischemia, thrombosis, etc., may be seen
at? - (Correct Answer)-Middle Cerebral Artery (MCA)
What are the most common symptoms of Middle Cerebral Artery cerebral infarction? - (Correct
Answer)-Contralateral face and arm/hand paralysis
C3 & C4
Arm/Hand Paralysis?
Face Paralysis? - (Correct Answer)-Arm/Hand Paralysis
T3 & T4
, 2
Arm/Hand Paralysis?
Face Paralysis? - (Correct Answer)-Face Paralysis
What is Compressed Spectral Array (CSA)? - (Correct Answer)-Three dimensional display of
EEG power spectral lines.
What is Spectral Edge Frequency (SEF)? - (Correct Answer)-Highest significant frequency
present in the recorded EEG spectrum for each epoch.
On the CSA, the Y Axis displays EEG as:
Frequency in Hz OR Power as a function (amplitude or mV) - (Correct Answer)-Power as a
function (amplitude or mV)
On the CSA, the X Axis displays EEG as:
Frequency in Hz OR Power as a function (amplitude or mV) - (Correct Answer)-Frequency in
Hz
Where does the burst-suppression pattern come from in the brain? - (Correct Answer)-Brainstem
Only patients with what types of seizures qualify to have epilepsy surgery? - (Correct Answer)-
Partial or Focal Epilepsies
The WADA is also known as: - (Correct Answer)-Sodium Amobarbital Test
The Sodium Amobarbital Test is hemisphere dominant for __________ & _____ _____ ____
assessment. - (Correct Answer)-Language & Short Term Memory
NOT LONG TERM MEMORY OR SPEECH
, 3
What does the WADA process begin with? - (Correct Answer)-It begins with selective
angiography
What is Angiography? - (Correct Answer)-Assesses arterial blood flow
Selective Angiography is a procedure in which visualization is improved by concentrating the
contrast media in the region to be studied by injection through a catheter.
The Ambobarbital Sodium is injected via an arterial catheter which is located at the
______________.
Proximal Internal Carotid Artery OR Proximal External Carotid Artery - (Correct Answer)-
Proximal Internal Carotid Artery
What kind of EEG activity would you see during a WADA? - (Correct Answer)-Slow activity
(delta) in the hemisphere ipsilateral to the injection.
**Ipsilateral hemispheric dysfunction & transient contralateral paralysis
Excessive irrigation fluid of CSF in the field has which of the following influences on the
recording?
a. sixty cycle artifact
b. shunting with subsequent cancellation
c. no change
d. all channels record the same activity in frequency & amplitude - (Correct Answer)-b. shunting
with subsequent cancellation
Almost like a big salt bridge