Practice Test GeeksEEG - Electroencephalography Practice Test
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Routine Flashcards

7 cards from real EEG practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Routine flashcards as text

  1. Which montage type records the voltage difference between each electrode and a common average of all electrodes?

    Answer: Common average reference montage

    The common average reference montage uses the mathematical average of all scalp electrodes as the reference for every channel.

  2. A patient falls asleep during a routine EEG. Which feature confirms Stage N2 sleep?

    Answer: Sleep spindles and K-complexes

    Stage N2 sleep is defined by the presence of sleep spindles (12–14 Hz) and/or K-complexes on the EEG.

  3. What is the standard low-frequency filter (LFF) setting used in routine clinical EEG?

    Answer: 1 Hz

    A low-frequency filter of 1 Hz (high-pass filter) is the standard setting for routine EEG to reduce slow baseline drift.

  4. During a routine EEG, the technologist notes high-amplitude, repetitive muscle artifact obscuring temporal channels. What is the best initial intervention?

    Answer: Ask the patient to relax the jaw and facial muscles

    Temporal muscle artifact is best reduced by instructing the patient to relax the jaw and facial muscles to reduce EMG contamination.

  5. Which of the following is NOT a standard activation procedure in a routine adult EEG?

    Answer: Cold caloric stimulation

    Cold caloric stimulation is a vestibular bedside test, not a standard EEG activation procedure; HV, photic stimulation, and sleep deprivation are standard.

  6. The alpha rhythm in a normal awake adult typically has a frequency range of:

    Answer: 8–13 Hz

    The normal adult alpha rhythm ranges from 8 to 13 Hz and is best seen over posterior regions with eyes closed.

  7. In a routine EEG report, the term 'breach rhythm' refers to:

    Answer: Enhanced amplitude and sharpening of rhythms due to a skull defect

    A breach rhythm is an increase in amplitude and sharpening of EEG activity caused by a focal skull defect reducing attenuation.