EEG Board Prep-technical Sciences
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MULTIPLE CHOICE QUESTIONS TO HELP NEUROTECHNOLOGISTS PREPARE FOR THEIR BOARD EXAM
- 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.
Adult
- B.
Newborn
- C.
Pre-school
- D.
Adolescence
- 43.Anorexia
- A.
A respiratory disease
- B.
Inability to read
- 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
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