EEG Board Prep-technical Sciences

50 Questions
EEG Board Prep-technical Sciences

MULTIPLE CHOICE QUESTIONS TO HELP NEUROTECHNOLOGISTS PREPARE FOR THEIR BOARD EXAM

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Questions and Answers
  • 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. 
    • 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. 
    Where is the focus and what is its polarity?
    • 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