ABRET EEG EXAM NEWEST 2026 ACTUAL EXAM TEST
BANK| COMPLETE 800 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+| ABRET EEG EXAM PREP 2025
(BRAND NEW!!)
1. The International 10-20 System of electrode placement is
designed to ensure:
A. Electrodes are placed at equal distances from each other
B. Reproducible and proportional placement based on head size
C. Electrodes are placed only on bony landmarks
D. All electrodes are placed at 10% intervals from nasion to
inion
Correct Answer: B. Reproducible and proportional placement
based on head size
1
,Rationale: The International 10-20 System uses proportional
measurements based on distances between bony landmarks on
the head . Electrodes are placed at intervals of 10% or 20% of
the total length of these lines, ensuring the same relative scalp
positions are identified regardless of head size . This system
provides standardized, reproducible electrode placement
essential for consistent EEG recording and interpretation.
2. According to the International 10-20 System, which
electrode position is midline?
A. T3
B. Fp1
C. Pz
D. O2
Correct Answer: C. Pz
2
,Rationale: In the 10-20 System, a lowercase "z" indicates a
midline scalp position . Pz is the midline parietal electrode. Odd
numbers are used over the left hemisphere, even numbers over
the right hemisphere . The letters indicate anatomical position: Fp
= frontopolar, F = frontal, C = central, T = temporal, P =
parietal, O = occipital .
3. The primary advantage of using a proportional system like
the 10-20 System is:
A. It reduces preparation time
B. It can identify the same relative position regardless of head
size
C. It eliminates the need for impedance checks
D. It guarantees artifact-free recordings
Correct Answer: B. It can identify the same relative position
regardless of head size
3
, Rationale: The International 10-20 System's proportional
approach ensures that the same relative scalp positions are
identified on any head size . This standardization allows for
reliable comparison of recordings across patients and facilities,
essential for clinical interpretation and research.
4. The standard adult EEG setup consists of how many
recording electrodes plus a ground electrode?
A. 16 recording electrodes
B. 19 recording electrodes
C. 21 recording electrodes
D. 24 recording electrodes
Correct Answer: C. 21 recording electrodes
Rationale: The standard EEG setup for adults consists of 21
recording electrodes plus 1 ground electrode, and additional
4
BANK| COMPLETE 800 REAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+| ABRET EEG EXAM PREP 2025
(BRAND NEW!!)
1. The International 10-20 System of electrode placement is
designed to ensure:
A. Electrodes are placed at equal distances from each other
B. Reproducible and proportional placement based on head size
C. Electrodes are placed only on bony landmarks
D. All electrodes are placed at 10% intervals from nasion to
inion
Correct Answer: B. Reproducible and proportional placement
based on head size
1
,Rationale: The International 10-20 System uses proportional
measurements based on distances between bony landmarks on
the head . Electrodes are placed at intervals of 10% or 20% of
the total length of these lines, ensuring the same relative scalp
positions are identified regardless of head size . This system
provides standardized, reproducible electrode placement
essential for consistent EEG recording and interpretation.
2. According to the International 10-20 System, which
electrode position is midline?
A. T3
B. Fp1
C. Pz
D. O2
Correct Answer: C. Pz
2
,Rationale: In the 10-20 System, a lowercase "z" indicates a
midline scalp position . Pz is the midline parietal electrode. Odd
numbers are used over the left hemisphere, even numbers over
the right hemisphere . The letters indicate anatomical position: Fp
= frontopolar, F = frontal, C = central, T = temporal, P =
parietal, O = occipital .
3. The primary advantage of using a proportional system like
the 10-20 System is:
A. It reduces preparation time
B. It can identify the same relative position regardless of head
size
C. It eliminates the need for impedance checks
D. It guarantees artifact-free recordings
Correct Answer: B. It can identify the same relative position
regardless of head size
3
, Rationale: The International 10-20 System's proportional
approach ensures that the same relative scalp positions are
identified on any head size . This standardization allows for
reliable comparison of recordings across patients and facilities,
essential for clinical interpretation and research.
4. The standard adult EEG setup consists of how many
recording electrodes plus a ground electrode?
A. 16 recording electrodes
B. 19 recording electrodes
C. 21 recording electrodes
D. 24 recording electrodes
Correct Answer: C. 21 recording electrodes
Rationale: The standard EEG setup for adults consists of 21
recording electrodes plus 1 ground electrode, and additional
4
