EEG Routine 3

Question 1

What montage is typically used as the initial display for reviewing a routine EEG?

Accepted Answer

Bipolar longitudinal (double banana) montage

Answer

The bipolar longitudinal (double banana) montage is the standard starting point for EEG review because it provides systematic anterior-to-posterior coverage, clear phase reversals for localization, and intuitive left-right comparison.

Question 2

A routine EEG report should include all of the following components EXCEPT:

Accepted Answer

Specific medication recommendations

Answer

EEG reports should include clinical history, technical description, background description, description of abnormalities, impression, and correlation. Specific medication recommendations are treatment decisions made in the clinical context, not part of the EEG report.

Question 3

The recommended minimum number of EEG channels for a routine clinical recording is:

Accepted Answer

16 channels (plus ECG, EOG)

Answer

The ACNS recommends a minimum of 16 EEG channels for routine clinical recording, derived from 21 electrodes in the 10-20 system, plus additional channels for ECG, EOG, and other polygraphic recordings.

Question 4

When should eye opening and closing commands be given during a routine EEG?

Accepted Answer

Multiple times during the awake baseline recording to assess posterior dominant rhythm reactivity

Answer

Eye opening/closing should be performed multiple times during the awake baseline to reliably assess the posterior dominant rhythm's frequency, amplitude, symmetry, and reactivity (alpha blocking), which are fundamental findings on the EEG.

Question 5

An EEG study should be classified as 'abnormal' when it shows:

Accepted Answer

Findings that deviate from established age-appropriate normal patterns, such as focal slowing or epileptiform discharges

Answer

An EEG is classified as abnormal when it contains findings that deviate from established age-appropriate norms, including focal or generalized slowing, epileptiform discharges, asymmetries, or absent/abnormal normal patterns.

EEG - Electroencephalography Practice Test

EEG - Electroencephalography Practice Test

EEG Routine 3