When the posterior background rhythm does not attenuate with eye opening it is referred to
as: - ANSWER Bancaud Phenomenon
activation procedures should be AVOIDED in a patient with a recent intracranial hemor-
rhage? - ANSWER Hyperventilation
What is the indentation between the nose and the forehead? - ANSWER Nasion
BENIGN EPILEPTIFORM TRANSIENTS OF SLEEP - ANSWER peak at 30-60 years
Which of the following time constants would best display delta activity? - ANSWER 1.0
second
STAGE N3 (STAGE 3/4) SLEEP - ANSWER 30% delta activity
Ictal - ANSWER During
What is the likely focus and the polarity of the sharply contoured wave in the box? - AN-
SWER Fp1 Negative
Atonic seizure - ANSWER Loss of whole body muscle tone
MENINGITIS - ANSWER Nuchal rigidity
1
,Which mathematically converts the time function into a sine wave of different frequencies? -
ANSWER Fast Fourier Transform
PLEDS are most likely to be seen in a patient presenting with: - ANSWER Cerebral em-
bolus
Which normal waveform is NOT typically seen in the posterior leads? - ANSWER Wick-
ets
Which of the following is most useful in the evaluation of temporal lobe seizures? - AN-
SWER Sleep EEG
The pattern which disappears at the youngest conceptional age is - ANSWER delta
brushes
At the onset of sleep, a 40-week conceptional age infant is most likely to enter into which of
the following stages of sleep? - ANSWER Active
Which of the following occurs during a typical absence seizure? - ANSWER Impaired
consciousness
A 9 mm deflection at a setting of 20 microvolts/mm will have an input signal of - AN-
SWER 180 microvolts
Why is it not best practice to allow an outpatient to sleep throughout the entire EEG record-
ing? - ANSWER Unable to evaluate the patient\'s background rhythm
2
, Which of the following is the most appropriate instrumentation setting change that should
be made in order to enhance cortical slowing? - ANSWER Change the LFF from 1 Hz.
To .1 Hz.
Which of the following stimuli is most likely to be a trigger for Reflex Seizures? - AN-
SWER Writing
What is a sub harmonic response to photic stimulation? - ANSWER Photic driving at
half the speed of the flash rate
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? - ANSWER 5.5 cm
Signals common to both inputs of a differential amplifier with like frequency, amplitude and
phase are: - ANSWER canceled
With rapidly increasing dosage, which of the following medications will have the most seda-
tive effect on the patient? - ANSWER Barbiturates
Photic light should be how far from a patient\'s eyes? - ANSWER 12 inches
A common electrographic correlate of a seizure: - ANSWER Rhythmic activity
EMG artifacts time locked with the flash frequency of photic stimulation - AN-
SWER Photomyogenic Response
When attempting to minimize relentless muscle artifact on a recording, the technologist
should be aware that lowering the high filter could cause the artifact to resemble: - AN-
SWER beta activity.
3
as: - ANSWER Bancaud Phenomenon
activation procedures should be AVOIDED in a patient with a recent intracranial hemor-
rhage? - ANSWER Hyperventilation
What is the indentation between the nose and the forehead? - ANSWER Nasion
BENIGN EPILEPTIFORM TRANSIENTS OF SLEEP - ANSWER peak at 30-60 years
Which of the following time constants would best display delta activity? - ANSWER 1.0
second
STAGE N3 (STAGE 3/4) SLEEP - ANSWER 30% delta activity
Ictal - ANSWER During
What is the likely focus and the polarity of the sharply contoured wave in the box? - AN-
SWER Fp1 Negative
Atonic seizure - ANSWER Loss of whole body muscle tone
MENINGITIS - ANSWER Nuchal rigidity
1
,Which mathematically converts the time function into a sine wave of different frequencies? -
ANSWER Fast Fourier Transform
PLEDS are most likely to be seen in a patient presenting with: - ANSWER Cerebral em-
bolus
Which normal waveform is NOT typically seen in the posterior leads? - ANSWER Wick-
ets
Which of the following is most useful in the evaluation of temporal lobe seizures? - AN-
SWER Sleep EEG
The pattern which disappears at the youngest conceptional age is - ANSWER delta
brushes
At the onset of sleep, a 40-week conceptional age infant is most likely to enter into which of
the following stages of sleep? - ANSWER Active
Which of the following occurs during a typical absence seizure? - ANSWER Impaired
consciousness
A 9 mm deflection at a setting of 20 microvolts/mm will have an input signal of - AN-
SWER 180 microvolts
Why is it not best practice to allow an outpatient to sleep throughout the entire EEG record-
ing? - ANSWER Unable to evaluate the patient\'s background rhythm
2
, Which of the following is the most appropriate instrumentation setting change that should
be made in order to enhance cortical slowing? - ANSWER Change the LFF from 1 Hz.
To .1 Hz.
Which of the following stimuli is most likely to be a trigger for Reflex Seizures? - AN-
SWER Writing
What is a sub harmonic response to photic stimulation? - ANSWER Photic driving at
half the speed of the flash rate
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? - ANSWER 5.5 cm
Signals common to both inputs of a differential amplifier with like frequency, amplitude and
phase are: - ANSWER canceled
With rapidly increasing dosage, which of the following medications will have the most seda-
tive effect on the patient? - ANSWER Barbiturates
Photic light should be how far from a patient\'s eyes? - ANSWER 12 inches
A common electrographic correlate of a seizure: - ANSWER Rhythmic activity
EMG artifacts time locked with the flash frequency of photic stimulation - AN-
SWER Photomyogenic Response
When attempting to minimize relentless muscle artifact on a recording, the technologist
should be aware that lowering the high filter could cause the artifact to resemble: - AN-
SWER beta activity.
3
