EEG 202 TEST REVIEW 2025/26 QUESTIONS & ANSWERS RATED 100% CORRECT!!
the international 10-20 system of electrode placement was established in - (ANSWER)1958
what is the starting point for making the measurements of the international 10-20 system of electrode
placement? - (ANSWER)landmarks on the skull
the international 10-20 system of electrode placement is - (ANSWER)a standard for symmetrical
placement using 10 and 20% measurements from landmarks on the skull
pre-auricular points are - (ANSWER)indentations just above the external opening of the ears
in the alphabetical nomenclature of the 10-20 system, Fp indicates - (ANSWER)frontal polar
"Pg" or "NPg" stands for _______ in 10-20 nomenclature - (ANSWER)nasopharyngeal
Parting the patient's hair helps to make more accurate measurements because hair has volume that can
change measurements - (ANSWER)true
an instrument for comparing like distances, that is useful in head measurement is - (ANSWER)a set of
calipers
Another way to calculate the 20% segments, is to take the distance from the 10% up marks and divide
the remaining distance into 4 equal parts - (ANSWER)true
What is another name for the electrode site CZ? - (ANSWER)Vertex
if the distance from nasion to inion is 36 cm, then without moving the tape measure, you will make
marks at these measurements - (ANSWER)3.5, 10.8, 18.0, 25.2, 32.4
CS 202 EXAM 2 QUESTIONS WITH 100% CORRECT
ANSWERS.
, EEG 202 TEST REVIEW 2025/26 QUESTIONS & ANSWERS RATED 100% CORRECT!!
Equipment needed for head measurement includes - (ANSWER)centimeter measuring tape, non-toxic
marker or china marker, calipers, calculator
a skill necessary in the 10-20 measurement, that requires practice, and is essential to accurate
measurement is - (ANSWER)holding the tape measure steady in one hand and marking with the other
when measuring from nasion to inion, the percentages for calculating Fpz, Fz, Cz, Pz, and Oz would be -
(ANSWER)10% of total measurement
Cz is what percentage of the measurement from Nasion to Inion? - (ANSWER)50%
When making the circumference measurements for F7, F8, T5, and T6 you can make the vertical from
mm distance and horizontal while using the tape measure as a straight edge - (ANSWER)true
Poor identification of landmarks - (ANSWER)can cause errors in other areas
The measurement from Fp1 to O1 is divided into ______ equal parts to make measurements for F3, C3,
and P3 - (ANSWER)4
Modification of the 10-20 System may be necessary _____. - (ANSWER)a. in the presence of scalp lesions
or sutures
What is a breach rhythm? - (ANSWER)b. increased amplitude over a bur hole, skull defect from injury,
malformation or surgical opening in the skull
A double-distance montage is _____. (Select all that apply) - (ANSWER)all of the above
In cerebral death recordings, according to the ACNS Guidelines, interelectrode impedances should be
____. (acns.org Guideline 3) - (ANSWER)c. under 10,000 ohms but over 100 ohms
CS 202 EXAM 2 QUESTIONS WITH 100% CORRECT
ANSWERS.
the international 10-20 system of electrode placement was established in - (ANSWER)1958
what is the starting point for making the measurements of the international 10-20 system of electrode
placement? - (ANSWER)landmarks on the skull
the international 10-20 system of electrode placement is - (ANSWER)a standard for symmetrical
placement using 10 and 20% measurements from landmarks on the skull
pre-auricular points are - (ANSWER)indentations just above the external opening of the ears
in the alphabetical nomenclature of the 10-20 system, Fp indicates - (ANSWER)frontal polar
"Pg" or "NPg" stands for _______ in 10-20 nomenclature - (ANSWER)nasopharyngeal
Parting the patient's hair helps to make more accurate measurements because hair has volume that can
change measurements - (ANSWER)true
an instrument for comparing like distances, that is useful in head measurement is - (ANSWER)a set of
calipers
Another way to calculate the 20% segments, is to take the distance from the 10% up marks and divide
the remaining distance into 4 equal parts - (ANSWER)true
What is another name for the electrode site CZ? - (ANSWER)Vertex
if the distance from nasion to inion is 36 cm, then without moving the tape measure, you will make
marks at these measurements - (ANSWER)3.5, 10.8, 18.0, 25.2, 32.4
CS 202 EXAM 2 QUESTIONS WITH 100% CORRECT
ANSWERS.
, EEG 202 TEST REVIEW 2025/26 QUESTIONS & ANSWERS RATED 100% CORRECT!!
Equipment needed for head measurement includes - (ANSWER)centimeter measuring tape, non-toxic
marker or china marker, calipers, calculator
a skill necessary in the 10-20 measurement, that requires practice, and is essential to accurate
measurement is - (ANSWER)holding the tape measure steady in one hand and marking with the other
when measuring from nasion to inion, the percentages for calculating Fpz, Fz, Cz, Pz, and Oz would be -
(ANSWER)10% of total measurement
Cz is what percentage of the measurement from Nasion to Inion? - (ANSWER)50%
When making the circumference measurements for F7, F8, T5, and T6 you can make the vertical from
mm distance and horizontal while using the tape measure as a straight edge - (ANSWER)true
Poor identification of landmarks - (ANSWER)can cause errors in other areas
The measurement from Fp1 to O1 is divided into ______ equal parts to make measurements for F3, C3,
and P3 - (ANSWER)4
Modification of the 10-20 System may be necessary _____. - (ANSWER)a. in the presence of scalp lesions
or sutures
What is a breach rhythm? - (ANSWER)b. increased amplitude over a bur hole, skull defect from injury,
malformation or surgical opening in the skull
A double-distance montage is _____. (Select all that apply) - (ANSWER)all of the above
In cerebral death recordings, according to the ACNS Guidelines, interelectrode impedances should be
____. (acns.org Guideline 3) - (ANSWER)c. under 10,000 ohms but over 100 ohms
CS 202 EXAM 2 QUESTIONS WITH 100% CORRECT
ANSWERS.
