EEG MASTERY LAB · OFFLINE POWERPOINT
Question Bank 12
30 questions · matched answer slides · clinical rationales
Advance one slide to reveal each answer. Full source rationales are preserved in the
answer-slide notes.
,QUESTION 1 · Medium · SOURCE 331
Why should an EEG amplifier have high input impedance?
A. To avoid attenuating the small EEG signal
B. To make electrode impedance irrelevant
C. To increase 60 Hz noise
D. To remove the need for filters
EEG MASTERY · BANK 12 · QUESTION 1/30
,ANSWER 1 · SOURCE 331
Why should an EEG amplifier have high input impedance?
A. To avoid attenuating the small EEG signal
CLINICAL RATIONALE
A. Correct. High input impedance allows accurate measurement of small biopotentials without excessive signal loss. B. Incorrect.
Electrode impedance still matters, especially when unbalanced. C. Incorrect. The goal is not to increase line noise. D. Incorrect. Filters
remain necessary for signal conditioning and display.
EEG MASTERY · BANK 12 · ANSWER 1/30
, QUESTION 2 · Medium · SOURCE 332
A standard EEG page shows 10 seconds of data. Increasing the
display speed will do what?
A. Horizontally expand the waveform
B. Vertically increase amplitude
C. Remove slow artifact
D. Change electrode impedance
EEG MASTERY · BANK 12 · QUESTION 2/30
Question Bank 12
30 questions · matched answer slides · clinical rationales
Advance one slide to reveal each answer. Full source rationales are preserved in the
answer-slide notes.
,QUESTION 1 · Medium · SOURCE 331
Why should an EEG amplifier have high input impedance?
A. To avoid attenuating the small EEG signal
B. To make electrode impedance irrelevant
C. To increase 60 Hz noise
D. To remove the need for filters
EEG MASTERY · BANK 12 · QUESTION 1/30
,ANSWER 1 · SOURCE 331
Why should an EEG amplifier have high input impedance?
A. To avoid attenuating the small EEG signal
CLINICAL RATIONALE
A. Correct. High input impedance allows accurate measurement of small biopotentials without excessive signal loss. B. Incorrect.
Electrode impedance still matters, especially when unbalanced. C. Incorrect. The goal is not to increase line noise. D. Incorrect. Filters
remain necessary for signal conditioning and display.
EEG MASTERY · BANK 12 · ANSWER 1/30
, QUESTION 2 · Medium · SOURCE 332
A standard EEG page shows 10 seconds of data. Increasing the
display speed will do what?
A. Horizontally expand the waveform
B. Vertically increase amplitude
C. Remove slow artifact
D. Change electrode impedance
EEG MASTERY · BANK 12 · QUESTION 2/30
