EEG Board Prep Questions And Answers
You are called to do an EEG on a patient who was found down for an unknown
amount of time. Based on your findings, you decided to perform cerebral death
protocol via your labs policy. The sensitivity should be increased to
2 uv/mm
A recording directly from the brain
Electrocorticorgraphy
Tacys Sachs disease is associated with
Cherry red spots in the eyes
You are recording in a longitudinal (double banana) montage. You see a spike
discharge phase reverse at C4 and T4. In this case the true localization of the
spike can best be see in a
transverse montage
If the time (horizontal) scale is changed from 30mm/sec to 15mm/sec, the 6 hertz
activity becomes
there is no frequency change but the activity appears faster
Which of the follow drugs show the most observable effects on the EEG?
Benzodiaepines
The notch filter can distort spikes and should only be used when other measures
to reduce ____ interference fail
60Hz
Lambda waves can be associated with
saccadic eye movement
Wernickes Encephalopathy can be cause by
Thiamine deficiency
During a bipolar recording, you notice sharp activity from F7-T3 that shows an
upward deflection, T3-T5 shows no activity, and T5-O1 shows a downward
deflection. Which statement below best represents the above scenario?
Equipotential at T3 and T5
A characteristic of this disease is high amplitude spikes in the occipital region,
time locked with a slow photic stimulus rate in young children
Batten's disease
Which are of the CNS contains nucli of the cranial nerves III to XII?
Brain stem
This is located in the frontal lobe
primary motor strip
EPSP causes
Depolarization
A patient has hepatic encephalopathy. The EEG is most likely to show
Triphasic waves
You are performing an EEG on a person who has Alzheimer's disease, but is is
the very early stages. You are most likely to see this on the EEG
normal activity
The amplitude of a theta wave on the left temporal is 65uV, and the amplitude of a
theta wave at the same time on the right temporal is 25 uV. This is called
, amplitude asymmetry
You are performing an EEG on a patient and notice ECG (EKG) artifact. The
montage to best eliminate ECG is
a linked ear referential montage
Syringomyelia
abnormal cavity or cyst in the spinal cord
Focal seizures refer to
Seizures occurring from one hemisphere
Wada testing is done to determine
speech dominance
Brainstem
midbrain, pons and medulla
As you are performing an EEG, you notice a wave that is sharply contoured and
stands out from the background located in the left temporal region. You measure
it, and it measures 90ms in duration. You would call this wave a
sharp
In a normal adult EEG, six to seven hertz theta activity is normally seen
at the onset of drowisness
Inflammation of the brain
encephalitis
The major seizure classification system from the ILAE has these major categories
Focal, Unknown onset, Generalized
Changing this could cause artifact to resemble beta activity
high frequency filter
Which of the following is a normal variant mostly recorded from the posterior
temporal region?
14 and 6 positive spikes
Along the motor cortex, which area listed below is closest to the midline
Along the motor cortex, which area listed below is closest to the midline
Which membrane covering is closest to the brain
pia mater
A brain injury that occurs on the opposite side of the head is referred to as
contra coup
The term complex in complex partial seizures refers to
impairment of consciousness
This is the lobe that would be affected if you were having a visual aura
occipital
Changing the high frequency filter from 70 Hz to 30 Hz attenuates
EMG artifact and epileptic discharges
Deja Vu
false sense of familiarity with the current situation
Your patients was found to have blood in their cerebrospinal fluid (CSF), they
most likely have
subarachnoid hemorrhage
The difference between trace discontinue (TD) and trace alternate (TA) is:
select the best answer
You are called to do an EEG on a patient who was found down for an unknown
amount of time. Based on your findings, you decided to perform cerebral death
protocol via your labs policy. The sensitivity should be increased to
2 uv/mm
A recording directly from the brain
Electrocorticorgraphy
Tacys Sachs disease is associated with
Cherry red spots in the eyes
You are recording in a longitudinal (double banana) montage. You see a spike
discharge phase reverse at C4 and T4. In this case the true localization of the
spike can best be see in a
transverse montage
If the time (horizontal) scale is changed from 30mm/sec to 15mm/sec, the 6 hertz
activity becomes
there is no frequency change but the activity appears faster
Which of the follow drugs show the most observable effects on the EEG?
Benzodiaepines
The notch filter can distort spikes and should only be used when other measures
to reduce ____ interference fail
60Hz
Lambda waves can be associated with
saccadic eye movement
Wernickes Encephalopathy can be cause by
Thiamine deficiency
During a bipolar recording, you notice sharp activity from F7-T3 that shows an
upward deflection, T3-T5 shows no activity, and T5-O1 shows a downward
deflection. Which statement below best represents the above scenario?
Equipotential at T3 and T5
A characteristic of this disease is high amplitude spikes in the occipital region,
time locked with a slow photic stimulus rate in young children
Batten's disease
Which are of the CNS contains nucli of the cranial nerves III to XII?
Brain stem
This is located in the frontal lobe
primary motor strip
EPSP causes
Depolarization
A patient has hepatic encephalopathy. The EEG is most likely to show
Triphasic waves
You are performing an EEG on a person who has Alzheimer's disease, but is is
the very early stages. You are most likely to see this on the EEG
normal activity
The amplitude of a theta wave on the left temporal is 65uV, and the amplitude of a
theta wave at the same time on the right temporal is 25 uV. This is called
, amplitude asymmetry
You are performing an EEG on a patient and notice ECG (EKG) artifact. The
montage to best eliminate ECG is
a linked ear referential montage
Syringomyelia
abnormal cavity or cyst in the spinal cord
Focal seizures refer to
Seizures occurring from one hemisphere
Wada testing is done to determine
speech dominance
Brainstem
midbrain, pons and medulla
As you are performing an EEG, you notice a wave that is sharply contoured and
stands out from the background located in the left temporal region. You measure
it, and it measures 90ms in duration. You would call this wave a
sharp
In a normal adult EEG, six to seven hertz theta activity is normally seen
at the onset of drowisness
Inflammation of the brain
encephalitis
The major seizure classification system from the ILAE has these major categories
Focal, Unknown onset, Generalized
Changing this could cause artifact to resemble beta activity
high frequency filter
Which of the following is a normal variant mostly recorded from the posterior
temporal region?
14 and 6 positive spikes
Along the motor cortex, which area listed below is closest to the midline
Along the motor cortex, which area listed below is closest to the midline
Which membrane covering is closest to the brain
pia mater
A brain injury that occurs on the opposite side of the head is referred to as
contra coup
The term complex in complex partial seizures refers to
impairment of consciousness
This is the lobe that would be affected if you were having a visual aura
occipital
Changing the high frequency filter from 70 Hz to 30 Hz attenuates
EMG artifact and epileptic discharges
Deja Vu
false sense of familiarity with the current situation
Your patients was found to have blood in their cerebrospinal fluid (CSF), they
most likely have
subarachnoid hemorrhage
The difference between trace discontinue (TD) and trace alternate (TA) is:
select the best answer
