R.EEG.T exam prep
Diplopia - answer Double vision
Which normal waveform is NOT typically seen in the posterior leads? (Wickets, photic
driving, Lambda, POSTS) - answer Wickets
The EEG of a patient with Down's syndrome is most likely to show: - answer normal
activity
The sharpness of the frequency response curve is determined by the filter ___ - answer
Rolloff
A lesion of the uncus may result in - answer olfactory hallucinations
Delta brushes are seen in what type of patients - answer premature infants
Changes in personality are most likely associated with tumors of the __ lobe - answer
frontal lobe
What type of seizure is NOT associated with Lennox Gastaut syndrome -
answercomplex seizures
Which of the following is most closely related to the measurement of voltage in relation
to current and resistance - answerOhms law
A meningioma is usually
-infiltrating,
-metastatic,
-rapid growing
-encapsulated - answer
impedance can best be described as
-current produced by a wire coil in a magnetic field
-ability to store an electrical charge
-resistance to alternating current
-resistance to direct current - answer...resistance to alternating current
What normal activity would be seen most prominently at the C3 or C4 electrode
position?
-POSTS
-Mu
-Alpha
,-FIRDA - answerMu
It is common for FIRDA to
-be considered normal in adults age 30 to 50
-be confused with nystagmus
-react to stimulation
-have spikes intermixed - answer...be confused with nystagmus
Voltage Resolution is correlated with
-Bandwith
-Sample rate
-Analog to digital converter - answerAnalog to digital converter
A large lesion at the optic chiasm will likely produce.. - answercomplete visual loss
What EEG finding indicates the worst prognosis in patients with cerebral hemorrhages?
- answerburst suppression pattern
The neurological examination is most likely to be abnormal in patients with
-Lennox Gastaut
-juvenile myoclonic epilepsy
-Rolandic epilepsy - answerLennox gastaut
Through what opening do the lateral ventricles merge with the third ventricle? -
answerForamen of monroe
What enviornmental factors enhance LAMDBA? - answerScanning high complexity
visual scene
Compared to recordings from adult patients, Vertex Waves in pediatric EEG recordings
are generally - answerSharper
Periodic lateralized epileptiform discharges are most likely associated with which
condition - answerHerpes simplex encephalitis
In patients with myoclonic epilepsy of Janz, seizures are most likely to occur: - answerIn
the morning
During which of the following types of seizures would a patient be likely to experience
deja vu?
-myoclonic
-complex partial
-generalized non convulsive
-atonic - answer...complex partial
A common electrographic correlate of a seizure
,-irregular polymorphic delta
-rhythmic activity
-single bifrontal spikes
-intermittent temporal spikes - answerrhythmic activity
Which mathematically converts the time function into a sine wave of different
frequencies
-Fast fourier transform
-impedance meter
-A/D converter
-Differential amplifier - answerFast fourier transform
When a large amount of electrode paste is used to hold EEG electrodes in place, the
total recording area will be the
-scalp surface area of the paste
-diameter of the EEG electrode
-inner surface area of the electrode
-inner plus outer surface area of the electrode - answertotal scalp surface area of the
paste
Photic induced epileptiform discharges are most likely associated with
-meningitis
-barbiturate withdrawal
-hepatic encephalopathy
-down syndrome - answerbarbiturate withdrawal
What clinical signs are expected to be seen if a patient has a stroke involving the left
anterior cerebral artery?
-left lower extremity sensory loss
-right homonymous hemianopsia
-left homonymous hemianopsia
-right lower extremity sensory loss - answerRight lower extremity sensory loss
Clipping of the waveforms occurs when: - answerthe signal is outside the range of the
digitizer
Using the International 10-20 electrode placements, if the distance from Fp2 to F4 is 5.5
cm, what is the distance from P4 to 02? - answer5.5cm
CREUTZFELDT-JAKOB DISEASE pattern: - answerPeriodic sharp waves
Clinical semiology is a way to describe: - answerbehaviors during patient events
Which of the following would indiciate the best prognosis in a comatose patient?
-spindle coma
, -electrographic changes indicating wakefulness and sleep
-generalized low amplitude delta with no background
-generalized suppression of EEG - answerElectrographic changes indicating
wakefulness and sleep.
What is indicated by the presence of unilateral Babinski Signs?
-Pyramidal tract dysfunction
-cerebellar dysfunction
-homonymous hemianopsia
-tic Doulourex - answerPyramidal tract dysfunction
What normal activity would be seen most prominently at the C3 or C4 electrode
postion?
-FIRDA
-Mu
-POSTs
-Alpha - answerMu
Which of the following may be indicated by the presence of blood in the cerebrospinal
fluid?
-subdural hemorrhage
-localized ICH w/o communication w/ventricles
-subarachnoid hemorrhage
-extradural hemorrhage - answersubarachnoid hemorrhage
Which of the following most closely relates to the ratio of an amplifiers' output to input
signal?
-Display sensitivity
-CMRR
-impedance
-system gain - answersystem gain
The most important source generator of the EEG is:
-cortical interneuron discharges
-pyramidal dendritic PSPs
-pyramidal cell action potentials
-thalamic oscillations - answerpyramidal dendritic PSPs
Collateral perfusion is maintained by:
-spinal cord
-brachial plexus
-Cauda Equina
-Circle of willis - answercircle of willis
Which of the following converts an analog signal into a series of digital binary numbers?
-Fast fourier transform
Diplopia - answer Double vision
Which normal waveform is NOT typically seen in the posterior leads? (Wickets, photic
driving, Lambda, POSTS) - answer Wickets
The EEG of a patient with Down's syndrome is most likely to show: - answer normal
activity
The sharpness of the frequency response curve is determined by the filter ___ - answer
Rolloff
A lesion of the uncus may result in - answer olfactory hallucinations
Delta brushes are seen in what type of patients - answer premature infants
Changes in personality are most likely associated with tumors of the __ lobe - answer
frontal lobe
What type of seizure is NOT associated with Lennox Gastaut syndrome -
answercomplex seizures
Which of the following is most closely related to the measurement of voltage in relation
to current and resistance - answerOhms law
A meningioma is usually
-infiltrating,
-metastatic,
-rapid growing
-encapsulated - answer
impedance can best be described as
-current produced by a wire coil in a magnetic field
-ability to store an electrical charge
-resistance to alternating current
-resistance to direct current - answer...resistance to alternating current
What normal activity would be seen most prominently at the C3 or C4 electrode
position?
-POSTS
-Mu
-Alpha
,-FIRDA - answerMu
It is common for FIRDA to
-be considered normal in adults age 30 to 50
-be confused with nystagmus
-react to stimulation
-have spikes intermixed - answer...be confused with nystagmus
Voltage Resolution is correlated with
-Bandwith
-Sample rate
-Analog to digital converter - answerAnalog to digital converter
A large lesion at the optic chiasm will likely produce.. - answercomplete visual loss
What EEG finding indicates the worst prognosis in patients with cerebral hemorrhages?
- answerburst suppression pattern
The neurological examination is most likely to be abnormal in patients with
-Lennox Gastaut
-juvenile myoclonic epilepsy
-Rolandic epilepsy - answerLennox gastaut
Through what opening do the lateral ventricles merge with the third ventricle? -
answerForamen of monroe
What enviornmental factors enhance LAMDBA? - answerScanning high complexity
visual scene
Compared to recordings from adult patients, Vertex Waves in pediatric EEG recordings
are generally - answerSharper
Periodic lateralized epileptiform discharges are most likely associated with which
condition - answerHerpes simplex encephalitis
In patients with myoclonic epilepsy of Janz, seizures are most likely to occur: - answerIn
the morning
During which of the following types of seizures would a patient be likely to experience
deja vu?
-myoclonic
-complex partial
-generalized non convulsive
-atonic - answer...complex partial
A common electrographic correlate of a seizure
,-irregular polymorphic delta
-rhythmic activity
-single bifrontal spikes
-intermittent temporal spikes - answerrhythmic activity
Which mathematically converts the time function into a sine wave of different
frequencies
-Fast fourier transform
-impedance meter
-A/D converter
-Differential amplifier - answerFast fourier transform
When a large amount of electrode paste is used to hold EEG electrodes in place, the
total recording area will be the
-scalp surface area of the paste
-diameter of the EEG electrode
-inner surface area of the electrode
-inner plus outer surface area of the electrode - answertotal scalp surface area of the
paste
Photic induced epileptiform discharges are most likely associated with
-meningitis
-barbiturate withdrawal
-hepatic encephalopathy
-down syndrome - answerbarbiturate withdrawal
What clinical signs are expected to be seen if a patient has a stroke involving the left
anterior cerebral artery?
-left lower extremity sensory loss
-right homonymous hemianopsia
-left homonymous hemianopsia
-right lower extremity sensory loss - answerRight lower extremity sensory loss
Clipping of the waveforms occurs when: - answerthe signal is outside the range of the
digitizer
Using the International 10-20 electrode placements, if the distance from Fp2 to F4 is 5.5
cm, what is the distance from P4 to 02? - answer5.5cm
CREUTZFELDT-JAKOB DISEASE pattern: - answerPeriodic sharp waves
Clinical semiology is a way to describe: - answerbehaviors during patient events
Which of the following would indiciate the best prognosis in a comatose patient?
-spindle coma
, -electrographic changes indicating wakefulness and sleep
-generalized low amplitude delta with no background
-generalized suppression of EEG - answerElectrographic changes indicating
wakefulness and sleep.
What is indicated by the presence of unilateral Babinski Signs?
-Pyramidal tract dysfunction
-cerebellar dysfunction
-homonymous hemianopsia
-tic Doulourex - answerPyramidal tract dysfunction
What normal activity would be seen most prominently at the C3 or C4 electrode
postion?
-FIRDA
-Mu
-POSTs
-Alpha - answerMu
Which of the following may be indicated by the presence of blood in the cerebrospinal
fluid?
-subdural hemorrhage
-localized ICH w/o communication w/ventricles
-subarachnoid hemorrhage
-extradural hemorrhage - answersubarachnoid hemorrhage
Which of the following most closely relates to the ratio of an amplifiers' output to input
signal?
-Display sensitivity
-CMRR
-impedance
-system gain - answersystem gain
The most important source generator of the EEG is:
-cortical interneuron discharges
-pyramidal dendritic PSPs
-pyramidal cell action potentials
-thalamic oscillations - answerpyramidal dendritic PSPs
Collateral perfusion is maintained by:
-spinal cord
-brachial plexus
-Cauda Equina
-Circle of willis - answercircle of willis
Which of the following converts an analog signal into a series of digital binary numbers?
-Fast fourier transform
