CNP Practice Test

1Multiple ChoiceSelect all that apply

During a routine scalp EEG, the technologist notes persistent 60 Hz artifact across multiple channels despite the patient being relaxed and the electrodes' impedances all measuring below 5 k. Which of the following interventions are appropriate? (Choose two.)

A.Check the integrity of the electrode leads and ensure proper connection to the headbox
B.Re-prepare the electrodes with additional abrasive paste to lower impedance further
C.Verify that the room's electrical equipment and recording system are properly grounded
D.Increase the high-frequency filter to 70 Hz to attenuate the artifact
E.Replace all electrodes with subdermal needle electrodes

Reveal the answer to continue