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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?
- 60 Hz
- 70 Hz
- 35 Hz
- 10 Hz - ANSWER-c. 35 Hz
Which artery provides blood supply to the left lateral surface of the brain?
- Left Middle Cerebral artery
- Right Middle Cerebral artery
- Anterior communicating artery
- Posterior communicating artery - ANSWER-a. Left Middle Cerebral
artery 1 / 4
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What affect would changing the HF from 7O Hz to 30 Hz have on a spike and wave complex?
- no affect
- will decrease the frequency of the spike and wave complex
- will decresae the amplitude of the slow wave
- 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?
- decrease the frequency
- increase the frequency
- have no affect on the frequency - ANSWER-c. have no affect on the
frequency
Sleep Spindles are seen centrally at a frequency of
- 4-7 Hz
- 7-11 Hz
- 12-14 Hz
- Greater than 13 Hz - ANSWER-c. 12-14 Hz 2 / 4
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What separates the sensory and motor strips of the brain?
- precentral sulcus
- central sulcus
- superior temporal sulcus
- inferior frontal sulcus - ANSWER-b. central sulcus
If the frequency of a wave is 1/2 Hz the duration would be
- 100 ms
- 1,000 ms
- 2,000 ms
- 3,000 ms
- 4,000 ms - ANSWER-c. 2,000 ms
Horizontal resolution is dependent upon
- timebase
- data points
- sampling rate
- none of the above 3 / 4
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- all of the above - ANSWER-e. all of the above
If the impedance of P4 is 10,000 ohms the technologist should
- do nothing this is an acceptable impedance
- Scratch P4 or reapply to lower the elecrode impedance
- turn the 60 Hz filter on to decrease the impedance
- 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?
- HF 15 Hz
- HF 35 Hz
- LF 1 Hz
- 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?
- diagram the deformity on separate paper and attach it to the record
- notate where the head bandages are located
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