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ABRET PRACTICE EXAM Version 2 Newest
2025-2026 Complete All Questions And Correct
Detailed Answers (Verified Answers) |Already
Graded A+||Brand New Version!
Which filter would be the most appropriate to use when you have
excessive muscle activity on the EEG?
a. 60 Hz
b. 70 Hz
c. 35 Hz
d. 10 Hz - ANSWER-c. 35 Hz
Which artery provides blood supply to the left lateral surface of the
brain?
a. Left Middle Cerebral artery
b. Right Middle Cerebral artery
c. Anterior communicating artery
d. Posterior communicating artery - ANSWER-a. Left Middle Cerebral
artery
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What affect would changing the HF from 7O Hz to 30 Hz have on a
spike and wave complex?
a. no affect
b. will decrease the frequency of the spike and wave complex
c. will decresae the amplitude of the slow wave
d. will decrease the amplitude of the spike - ANSWER-d. will decrease
the amplitude of the spike
How would a LF of 5 Hz affect the frequency of a 2 Hz wave?
a. decrease the frequency
b. increase the frequency
c. have no affect on the frequency - ANSWER-c. have no affect on the
frequency
Sleep Spindles are seen centrally at a frequency of
a. 4-7 Hz
b. 7-11 Hz
c. 12-14 Hz
d. Greater than 13 Hz - ANSWER-c. 12-14 Hz
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What separates the sensory and motor strips of the brain?
a. precentral sulcus
b. central sulcus
c. superior temporal sulcus
d. inferior frontal sulcus - ANSWER-b. central sulcus
If the frequency of a wave is 1/2 Hz the duration would be
a. 100 ms
b. 1,000 ms
c. 2,000 ms
d. 3,000 ms
e. 4,000 ms - ANSWER-c. 2,000 ms
Horizontal resolution is dependent upon
a. timebase
b. data points
c. sampling rate
d. none of the above
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e. all of the above - ANSWER-e. all of the above
If the impedance of P4 is 10,000 ohms the technologist should
a. do nothing this is an acceptable impedance
b. Scratch P4 or reapply to lower the elecrode impedance
c. turn the 60 Hz filter on to decrease the impedance
d. change the LF from 1 Hz to .53 Hz - ANSWER-b. Scratch P4 or
reapply to lower the electrode impedance
Which "Low Pass" filter would least attenuate muscle activity?
a. HF 15 Hz
b. HF 35 Hz
c. LF 1 Hz
d. LF .3 Hz - ANSWER-b. HF 35 Hz
If your patient has skull defects that limit your ability to place your EEG
recording electrodes in accordance with the International 10-20 System
of Electrode Placement, what must you do on your record?
a. diagram the deformity on separate paper and attach it to the record
b. notate where the head bandages are located
ABRET PRACTICE EXAM Version 2 Newest
2025-2026 Complete All Questions And Correct
Detailed Answers (Verified Answers) |Already
Graded A+||Brand New Version!
Which filter would be the most appropriate to use when you have
excessive muscle activity on the EEG?
a. 60 Hz
b. 70 Hz
c. 35 Hz
d. 10 Hz - ANSWER-c. 35 Hz
Which artery provides blood supply to the left lateral surface of the
brain?
a. Left Middle Cerebral artery
b. Right Middle Cerebral artery
c. Anterior communicating artery
d. Posterior communicating artery - ANSWER-a. Left Middle Cerebral
artery
,2|Page
What affect would changing the HF from 7O Hz to 30 Hz have on a
spike and wave complex?
a. no affect
b. will decrease the frequency of the spike and wave complex
c. will decresae the amplitude of the slow wave
d. will decrease the amplitude of the spike - ANSWER-d. will decrease
the amplitude of the spike
How would a LF of 5 Hz affect the frequency of a 2 Hz wave?
a. decrease the frequency
b. increase the frequency
c. have no affect on the frequency - ANSWER-c. have no affect on the
frequency
Sleep Spindles are seen centrally at a frequency of
a. 4-7 Hz
b. 7-11 Hz
c. 12-14 Hz
d. Greater than 13 Hz - ANSWER-c. 12-14 Hz
,3|Page
What separates the sensory and motor strips of the brain?
a. precentral sulcus
b. central sulcus
c. superior temporal sulcus
d. inferior frontal sulcus - ANSWER-b. central sulcus
If the frequency of a wave is 1/2 Hz the duration would be
a. 100 ms
b. 1,000 ms
c. 2,000 ms
d. 3,000 ms
e. 4,000 ms - ANSWER-c. 2,000 ms
Horizontal resolution is dependent upon
a. timebase
b. data points
c. sampling rate
d. none of the above
, 4|Page
e. all of the above - ANSWER-e. all of the above
If the impedance of P4 is 10,000 ohms the technologist should
a. do nothing this is an acceptable impedance
b. Scratch P4 or reapply to lower the elecrode impedance
c. turn the 60 Hz filter on to decrease the impedance
d. change the LF from 1 Hz to .53 Hz - ANSWER-b. Scratch P4 or
reapply to lower the electrode impedance
Which "Low Pass" filter would least attenuate muscle activity?
a. HF 15 Hz
b. HF 35 Hz
c. LF 1 Hz
d. LF .3 Hz - ANSWER-b. HF 35 Hz
If your patient has skull defects that limit your ability to place your EEG
recording electrodes in accordance with the International 10-20 System
of Electrode Placement, what must you do on your record?
a. diagram the deformity on separate paper and attach it to the record
b. notate where the head bandages are located
