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. During a routine EEG, how long should a standard hyperventilation activation procedure last?

    Answer: 3 minutes

    Standard hyperventilation during routine EEG lasts 3 minutes, followed by at least 1 minute of continued recording.

  2. Which electrode placement system is universally used for routine EEG recordings?

    Answer: 10-20 International System

    The 10-20 International System is the universally accepted standard for electrode placement in routine EEG.

  3. What is the minimum recommended duration for a routine outpatient EEG recording in an adult?

    Answer: 20 minutes

    A routine adult outpatient EEG should last at least 20 minutes of artifact-free recording to be diagnostically adequate.

  4. When applying EEG electrodes using collodion, what substance is used to remove them after the recording?

    Answer: Acetone

    Acetone is used to dissolve collodion and safely remove electrodes from the scalp after the EEG recording.

  5. Which EEG feature is a normal finding in drowsiness in adults?

    Answer: Vertex sharp waves

    Vertex sharp waves (V waves) are normal transients that appear over the vertex during drowsiness and light sleep.

  6. In a routine EEG, what is the purpose of the 'photic driving' response during photic stimulation?

    Answer: To assess cortical reactivity to visual stimuli

    Photic driving assesses the cortex's ability to follow and respond to rhythmic visual stimuli, reflecting posterior cortical reactivity.

  7. What impedance level is considered acceptable for EEG electrodes before starting a recording?

    Answer: Below 5,000 ohms (5 kΩ)

    Electrode impedances should be below 5 kΩ (and ideally matched between electrodes) to ensure low-artifact, high-quality recordings.

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