EEG BOARD PREP 2025 QUESTIONS
AND ANSWERS 100% PASS
The EEG amplifier is designed so that when input 1 is more negative than input 2, the
deflection will be - ✔✔UPWARD
Common Mode Rejection - ✔✔the characteristic of an amplifier that rejects external
interference
WHICH OF THE FOLLOWING IS MOST ATTENUATED BY A LOW FREQUENCY
FILTER OF 1HZ - ✔✔0.1 HZ
TIME CONSTANT IS DEFINED AS THE TIME REQUIRED TO... - ✔✔FOR THE
DEFLECTION TO FALL (DECAY) TO 67% OF THE PEAK DEFLECTION
An EEG record has 3/sec spike & wave discharges. Both the spike and the slow wave
have voltages of 100uV. If this discharge is recorded with a LFF of 5Hz and a sensitivity
of 10uV/mm, what would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
Katelyn Whitman, All Rights Reserved © 2025 1
,d. spike 6mm & wave 6mm - ✔✔SPIKE 10MM, WAVE 6MM
A HIGH FREQUENCY SETTING OF 35HZ WOULD ATTENUATE 50HZ MUSCLE
ACTIVITY BY APPROXIMATELY WHAT PERCENTAGE? - ✔✔40%
ACCORDING TO ACNS GUIDELINES, RECORDING CLINICAL EEG ON DIGITAL
MEDIA REQUIRES MONITORS TO HAVE WHAT - ✔✔BETWEEN 25 AND
35MM/SECOND HORIZONTAL SCALING AND A MINIMUM OF 100 DATA
POINTS/SECOND TO ACCURATELY DISPLAY EEG ON THE MONITOR SCREEN
IN A RECORD WITH 10HZ ALPHA ACTIVITY. WHEN THE DISPLAY EPOCH IS
CHANGED FROM 10 SECONDS PER DISPLAY SCREEN TO 20 SECONDS PER
DISPLAY SCREEN, THE FREQUENCY OF THE ACITIVTY WILL BE WHAT? -
✔✔10HZ
GUIDELINES FOR RECORDING DIGITAL EEG ARE WRITTEN BY WHO? - ✔✔THE
AMERICAN CLINICAL NEUROPHYSIOLOGY SOCIETY (ACNS)
THE TERM RAM MEANS WHAT - ✔✔TEMPORARY MEMORY STORAGE THAT IS
CRITICAL TO RAPID COMPUTER OPERATIONS
THE ELECTRODE SITE THAT IS LOCATED 1CM ABOVE, ONE THIRD THE
DISTANCE OUT FROM THE LEFT EXTERNAL AUDITORY MEATUS TOWARDS
THE LEFT OUTER CANTHUS IS CALLED WHAT - ✔✔T1 OR F9
Katelyn Whitman, All Rights Reserved © 2025 2
, Due to a central scalp lesion, C4 has to be relocated 4mm anteriorly. The technologist
should:
a. relocate C3 4mm anteriorly
b. make no other placement changes
c. relocate P3 4mm anteriorly
d. relocate all electrodes in the right parasagittal plane 4mm anteriorly - ✔✔A.
RELOCATE C3 4MM ANTERIORLY
IN A REFERENTIAL MONTAGE, HOW IS THE ORIGIN OF THE POTENTIAL
DETERMINED? - ✔✔AMPLITUDE
WHEN RECORDING FOR ECI, INTERELECTRODE IMPEDANCES SHOULD BE AT
LEAST____ OHMS, BUT LESS THAN _____ OHMS. - ✔✔100----10,000
WHEN RECORDING FOR ECI, IT IS RECOMMENDED THAT THE SENSITIVITY BE
_____ uV/MM AND THE LOW FILTER SHOULD NOT BE HIGHER THAN ____HZ.
FOR AT LEAST____MINS OF RECORDING. - ✔✔2uV, 1.0HZ, 30 MINS
THE TRACTS CONNECTING THE RIGHT AND LEFT HEMISPHERES ARE CALLED
WHAT? - ✔✔CORPUS CALLOSUM
THE CENTRAL SULCUS (FISSURE OF ROLANDO) DEMARCATES WHAT? -
✔✔FRONTAL AND PARIETAL LOBES
Katelyn Whitman, All Rights Reserved © 2025 3
AND ANSWERS 100% PASS
The EEG amplifier is designed so that when input 1 is more negative than input 2, the
deflection will be - ✔✔UPWARD
Common Mode Rejection - ✔✔the characteristic of an amplifier that rejects external
interference
WHICH OF THE FOLLOWING IS MOST ATTENUATED BY A LOW FREQUENCY
FILTER OF 1HZ - ✔✔0.1 HZ
TIME CONSTANT IS DEFINED AS THE TIME REQUIRED TO... - ✔✔FOR THE
DEFLECTION TO FALL (DECAY) TO 67% OF THE PEAK DEFLECTION
An EEG record has 3/sec spike & wave discharges. Both the spike and the slow wave
have voltages of 100uV. If this discharge is recorded with a LFF of 5Hz and a sensitivity
of 10uV/mm, what would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
Katelyn Whitman, All Rights Reserved © 2025 1
,d. spike 6mm & wave 6mm - ✔✔SPIKE 10MM, WAVE 6MM
A HIGH FREQUENCY SETTING OF 35HZ WOULD ATTENUATE 50HZ MUSCLE
ACTIVITY BY APPROXIMATELY WHAT PERCENTAGE? - ✔✔40%
ACCORDING TO ACNS GUIDELINES, RECORDING CLINICAL EEG ON DIGITAL
MEDIA REQUIRES MONITORS TO HAVE WHAT - ✔✔BETWEEN 25 AND
35MM/SECOND HORIZONTAL SCALING AND A MINIMUM OF 100 DATA
POINTS/SECOND TO ACCURATELY DISPLAY EEG ON THE MONITOR SCREEN
IN A RECORD WITH 10HZ ALPHA ACTIVITY. WHEN THE DISPLAY EPOCH IS
CHANGED FROM 10 SECONDS PER DISPLAY SCREEN TO 20 SECONDS PER
DISPLAY SCREEN, THE FREQUENCY OF THE ACITIVTY WILL BE WHAT? -
✔✔10HZ
GUIDELINES FOR RECORDING DIGITAL EEG ARE WRITTEN BY WHO? - ✔✔THE
AMERICAN CLINICAL NEUROPHYSIOLOGY SOCIETY (ACNS)
THE TERM RAM MEANS WHAT - ✔✔TEMPORARY MEMORY STORAGE THAT IS
CRITICAL TO RAPID COMPUTER OPERATIONS
THE ELECTRODE SITE THAT IS LOCATED 1CM ABOVE, ONE THIRD THE
DISTANCE OUT FROM THE LEFT EXTERNAL AUDITORY MEATUS TOWARDS
THE LEFT OUTER CANTHUS IS CALLED WHAT - ✔✔T1 OR F9
Katelyn Whitman, All Rights Reserved © 2025 2
, Due to a central scalp lesion, C4 has to be relocated 4mm anteriorly. The technologist
should:
a. relocate C3 4mm anteriorly
b. make no other placement changes
c. relocate P3 4mm anteriorly
d. relocate all electrodes in the right parasagittal plane 4mm anteriorly - ✔✔A.
RELOCATE C3 4MM ANTERIORLY
IN A REFERENTIAL MONTAGE, HOW IS THE ORIGIN OF THE POTENTIAL
DETERMINED? - ✔✔AMPLITUDE
WHEN RECORDING FOR ECI, INTERELECTRODE IMPEDANCES SHOULD BE AT
LEAST____ OHMS, BUT LESS THAN _____ OHMS. - ✔✔100----10,000
WHEN RECORDING FOR ECI, IT IS RECOMMENDED THAT THE SENSITIVITY BE
_____ uV/MM AND THE LOW FILTER SHOULD NOT BE HIGHER THAN ____HZ.
FOR AT LEAST____MINS OF RECORDING. - ✔✔2uV, 1.0HZ, 30 MINS
THE TRACTS CONNECTING THE RIGHT AND LEFT HEMISPHERES ARE CALLED
WHAT? - ✔✔CORPUS CALLOSUM
THE CENTRAL SULCUS (FISSURE OF ROLANDO) DEMARCATES WHAT? -
✔✔FRONTAL AND PARIETAL LOBES
Katelyn Whitman, All Rights Reserved © 2025 3
