EEG 202 Test Review Exam QUESTIONS
AND CORRECT ANSWERS
The international 10-20 system of electrode placement was established in - CORRECT
ANSWER 1958
What is the starting point for making the measurements of the international 10-20 system of electrode
placement? - CORRECT ANSWER landmarks on the skull
The international 10-20 system of electrode placement is - CORRECT ANSWER a standard for
symmetrical placement using 10 and 20% measurements from landmarks on the skull
Pre-auricular points are - CORRECT ANSWER indentations just above the external opening of
the ears
In the alphabetical nomenclature of the 10-20 system, Fp indicates - CORRECT
ANSWER frontal polar
"Pg" or "npg" stands for _______ in 10-20 nomenclature - CORRECT
ANSWER nasopharyngeal
Parting the patient's hair helps to make more accurate measurements because hair has volume that can
change measurements - CORRECT ANSWER true
An instrument for comparing like distances, that is useful in head measurement is - CORRECT
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 - CORRECT ANSWER true
What is another name for the electrode site CZ? - CORRECT 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 - CORRECT ANSWER 3.5, 10.8, 18.0, 25.2, 32.4
Equipment needed for head measurement includes - CORRECT 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 - CORRECT 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 - CORRECT ANSWER 10% of total measurement
Cz is what percentage of the measurement from Nasion to Inion? - CORRECT 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 - CORRECT
ANSWER true
Poor identification of landmarks - CORRECT 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 - CORRECT ANSWER 4
Modification of the 10-20 System may be necessary _____. - CORRECT ANSWER a. In the
presence of scalp lesions or sutures
What is a breach rhythm? - CORRECT 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) - CORRECT ANSWER all of the
above
AND CORRECT ANSWERS
The international 10-20 system of electrode placement was established in - CORRECT
ANSWER 1958
What is the starting point for making the measurements of the international 10-20 system of electrode
placement? - CORRECT ANSWER landmarks on the skull
The international 10-20 system of electrode placement is - CORRECT ANSWER a standard for
symmetrical placement using 10 and 20% measurements from landmarks on the skull
Pre-auricular points are - CORRECT ANSWER indentations just above the external opening of
the ears
In the alphabetical nomenclature of the 10-20 system, Fp indicates - CORRECT
ANSWER frontal polar
"Pg" or "npg" stands for _______ in 10-20 nomenclature - CORRECT
ANSWER nasopharyngeal
Parting the patient's hair helps to make more accurate measurements because hair has volume that can
change measurements - CORRECT ANSWER true
An instrument for comparing like distances, that is useful in head measurement is - CORRECT
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 - CORRECT ANSWER true
What is another name for the electrode site CZ? - CORRECT 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 - CORRECT ANSWER 3.5, 10.8, 18.0, 25.2, 32.4
Equipment needed for head measurement includes - CORRECT 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 - CORRECT 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 - CORRECT ANSWER 10% of total measurement
Cz is what percentage of the measurement from Nasion to Inion? - CORRECT 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 - CORRECT
ANSWER true
Poor identification of landmarks - CORRECT 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 - CORRECT ANSWER 4
Modification of the 10-20 System may be necessary _____. - CORRECT ANSWER a. In the
presence of scalp lesions or sutures
What is a breach rhythm? - CORRECT 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) - CORRECT ANSWER all of the
above
