EEG Routine 4

Question 1

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

Accepted Answer

3 minutes

Answer

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

Question 2

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

Accepted Answer

10-20 International System

Answer

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

Question 3

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

Accepted Answer

20 minutes

Answer

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

Question 4

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

Accepted Answer

Acetone

Answer

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

Question 5

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

Accepted Answer

Vertex sharp waves

Answer

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

EEG - Electroencephalography Practice Test