# EEG Board Prep-technical Sciences

50 Questions  Settings  MULTIPLE CHOICE QUESTIONS TO HELP NEUROTECHNOLOGISTS PREPARE FOR THEIR BOARD EXAM

Related Topics
• 1.
The smallest particle into which a substance can be divided and still retain its characteristics is the
• A.

Atom

• B.

Molecule

• C.

Compound

• D.

Ion

• 2.
Coulomb's Law deals with
• A.

Charge

• B.

Volume conduction

• C.

Frequency

• D.

Phase

• 3.
The movement of electrons through a conducter is
• A.

Resistance

• B.

Voltage

• C.

Current

• D.

Capacative reactance

• 4.
The ability to store charge is
• A.

Inductance

• B.

Impedance

• C.

Condensor

• D.

Capacitance

• 5.
Which of the following is NOT related to Ohm's Law?
• A.

Electromotive force

• B.

Impedance

• C.

Voltage

• D.

Phase

• 6.
Input impedance should
• A.

Be very high

• B.

Be very low

• C.

Equal the common mode rejection ratio

• D.

Affect the low frequency activity

• 7.
Gain is
• A.

The ratio of output signal to input signal

• B.

The same as sensitivity

• C.

Always less then 100:1

• D.

Express in dB

• 8.
In the mV/cm position, the sensivity of the amplifier is what fraction of the sensitivity on the uV/mm scale?
• A.

1/10

• B.

1/1000

• C.

1/100

• D.

1/1,000,000

• 9.
The incoming signal of 50uV would give a deflection of 7.1mm at the standard EEG setting of 7uV/mm.  If the range were set to 7mV/cm, what voltage would be needed to produce the same pen deflection of 7.1mm?
• A.

5mV

• B.

50uV

• C.

50mV

• D.

.5mV

• 10.
Given a pen deflection of 8mm and an input voltage of 25uV, what would the sensitivity of that channel be?
• A.

200 uV/mm

• B.

3.1 uV/mm

• C.

17 mm

• D.

33 uV/mm

• 11.
In a differential EEG amplifier, the common mode rejection ratio of the in phase signals        (i.e. 60 hz) is at least
• A.

100:1

• B.

500:1

• C.

50:1

• D.

1000:1

• 12.
The degree of overshoot, or "tail" allowed on a properly damped pen is what percentage of the total amount of deflection?
• A.

None is allowed

• B.

10%

• C.

5%

• D.

2%

• 13.
The characteristic of a differential amplifier used to cancel common mode voltage is called
• A.

Input impedance

• B.

Common mode rejection

• C.

Gain

• D.

Differential input

• 14.
The amount by which the differential amplifier increases the magnitude of the input signal is its
• A.

Sensitivity

• B.

Input impedance

• C.

Gain

• D.

Filter

• 15.
In a differential amplifier, if input one(1) received a voltage of 65uV and input two(2) received a voltage of -30uV, the output voltage seen would be
• A.

35 uV

• B.

95 uV

• C.

-95uV

• D.

-35 uV

• 16.
Excessive pen pressure has the same effect on the frequency characteristics similar to a pen that is
• A.

Overdamped

• B.

Underdamped

• 17.
• A.

40 milliseconds

• B.

200 milliseconds

• C.

400 milliseconds

• D.

500 milliseconds

• 18.
Which of the following EEG patterns would be enhanced by a paper speed of 15 mm/second?
• A.

14 and 6/second positive spikes

• B.

FIRDA

• C.

Mirror focus

• D.

Photic driving

• 19.
Which of the following is attenuated by a time constant of .03 seconds?
• A.

10 Hz

• B.

15 Hz

• C.

25 Hz

• D.

3 Hz

• 20.
Which of the following is MOST attenuated by a high frequency filter of 35 Hz?
• A.

10 Hz

• B.

15 Hz

• C.

25 Hz

• D.

35 Hz

• 21.
Which of the following is attenuated by a high pass filter of 5 Hz?
• A.

1 Hz

• B.

10 Hz

• C.

15 Hz

• D.

20 Hz

• 22.
Nasopharyngeal electrodes are used to record from the medial surface of the temporal lobe where as sphenoidal electrodes record from the
• A.

Olfactory nerve

• B.

Anterior tip of the temporal lobe

• C.

Zygomatic arch

• D.

Posterior portion of the frontal lobe

• 23.
Needle electrodes are composed of
• A.

Platinum

• B.

Ag-AgCl

• C.

Gold

• D.

Tin

• 24.
The best electrode for recording DC potentials is composed of
• A.

Platinum

• B.

Ag-AgCl

• C.

Gold

• D.

Tin

• 25.
Referential recording is better than bipolar recording for measuring
• A.

Phase reversals

• B.

Voltage

• C.

Phase

• D.

Frequency

• 26.
Bipolar recording is better than referential recording for recording
• A.

Phase reversals

• B.

Voltage

• C.

Phase

• D.

Frequency

• 27.
• A.

+ F7

• B.

- T3

• C.

+ T5

• D.

+ T3

• 28.
What is the MOST critical link in the whole recording chain of the EEG?
• A.

Relaxation of the patient

• B.

Electrode application

• C.

Calibration

• D.

Montages

• 29.
An artifact that may be mistaken for a rhythmical cerebral discharge can be caused by
• A.

Baseline sway

• B.

Swallow

• C.

Electrode pops

• D.

60 Hz

• 30.
AC impedance should be measured rather than DC resistance because
• A.

Measuring resistance causes electrode polarization

• B.

Measuring resistance is a time saver to the technologist

• C.

Measuring impedance causes electrode polarization

• D.

Measuring impedance causes discomfort to the patient

• 31.
Why is it advantageous to chloride electrodes?
• A.

Movement artifact is not as readily recorded

• B.

Preferred for DC recordings

• C.

Lower polarizing potentials are obtained

• D.

The electrodes will not require an electrolyte

• 32.
Where is the focus and what is its polarity?
• A.

-F3

• B.

+P3

• C.

-C3

• D.

+C3

• 33.
• A.

+T4

• B.

+F8

• C.

-F8, +T6

• D.

-F8, -T4

• 34.
• A.

-T4

• B.

+F8

• C.

+A2

• D.

+O2

• 35.
The steady potential difference between the aqueous and vitreous humors of the eye is
• A.

80 mV

• B.

60 mV

• C.

100 mV

• D.

50 mV

• 36.
Cross communication between blood vessels is called
• A.

Bifurcation

• B.

Decussation

• C.

Anastamosis

• D.

Arteriosclerosis

• 37.
Which of the following blood vessels is most frequently involved in cerebrovascular accidents?
• A.

External carotid artery

• B.

Jugular vein

• C.

Basilar artery

• D.

Internal carotid artery

• 38.
Myxedema is a disorder of
• A.

Liver finction

• B.

Muscles

• C.

Thyroid function

• D.

The eyes

• 39.
Thiamine deficiency may produce which of the following disorders?
• A.

Wernicke's encephalopathy

• B.

Parkinson's disease

• C.

Wilson's disease

• D.

Myxedema

• 40.
Inflammation of the coverings of the brain or spinal cord is called
• A.

Encephalitis

• B.

Meningitis

• C.

Cerebritis

• D.

Myelitis

• 41.
Which of the following is the most common type of brain tumor?
• A.

Glioma

• B.

Angioma

• C.

Meningioma

• D.

Neurofibroma

• 42.
Visual evoked potential have the greatest amplitude in the following age group
• A.

• B.

Newborn

• C.

Pre-school

• D.

• 43.
Anorexia
• A.

A respiratory disease

• B.

• C.

Loss of appetite

• D.

Oxygen deficiency

• 44.
Meniere's disease
• A.

A disease of the auditory cortex

• B.

Caused by meningitis

• C.

A type of cancer

• D.

An inner ear disturbance

• 45.
Which of the following is a symptom of a narcoleptic patient?
• A.

Enuresis

• B.

Sleep walking

• C.

Hypnagogic hallucinations

• D.

Emotional instability

• 46.
In which psychotic disorder will a patient have periods of high elation and periods of deep withdrawal?
• A.

Schizophrenia

• B.

Paranoia

• C.

Manic-depressive

• D.

Conversion reaction

• 47.
Lower motor neurons are located in the
• A.

Anterior horn cells of the spinal cord

• B.

Cortico-spinal tract

• C.

Basal ganglia

• D.

Pyramidal tract

• 48.
Afferent fibers conduct
• A.

Toward the cell body

• B.

Away from the cell body

• C.

Only in the brain

• D.

Only in the spinal cord

• 49.
Which of the following is NOT part of the brain stem?
• A.

Medulla

• B.

Pons

• C.

Cerebellum

• D.

Diencephalon

• 50.
The primary auditory receptive area at the cortex is the
• A.

Lateral lemniscus

• B.

Anterior temporal transverse gyrus

• C.

Medial geniculate body

• D.

Hippocampus