EEG 101 FINAL EXAM QUESTIONS WITH CORRECT
ANSWERS
1.
_ is seen in the central regions during Stage II sleep.
a. Beta
b. Theta
c. Sleep Spindles
d. Polymorphic Delta CORRECT ANSWER c. Sleep spindles
2.
Which filter is used to eliminate artifact caused by electrical interference?
a. 10 Hz
b. 15 Hz
c. 35 Hz
d. 60 Hz
e. 70 Hz CORRECT ANSWER d. 60 Hz
is specific in eliminating electrical or 60Hz artifact
3.
A spike that has a frequency of 16 Hz has a duration of
a. .06 sec.
b. .6 sec.
c. .6 milliseconds
d. 600 milliseconds CORRECT ANSWER a. .06 sec.
Duration = 1 divided by the duration
4.
All of the following are true of alpha EXCEPT
a. is a frequency of 9-10 Hz in the alert, awake adult
b. is seen in the posterior head regions
c. attenuates with eye opening and accentuates with eye closing
d. is frequently seen in the front-central regions of the alert, awake adult CORRECT
ANSWER d. is frequently seen in the front-central regions of the alert, awake adult
5.
What affect would be changing the HF from 70Hz to 30Hz have on a spike and wave
complex?
a. no affect
b. will decrease the frequency of the spike and wave complex
c. will decrease the amplitude of the slow wave
d. will decrease the amplitude of the spike CORRECT ANSWER d. will decrease the
amplitude of the spike
HF affects fast wave. Spikes are fast and change in the HF will decrease the amplitude
of the spike.
6.
Beta activity is
a. seen in the frontal regions of the alert, awake, relaxed adult
b. is frequently seen in the occipital regions during drowsiness
c. accentuates with eye opening
d. is always indicative of barbibuate use CORRECT ANSWER a. seen in the frontal
regions of the alert, awake, relaxed adult
7.
_ is 1 divided by the duration of the wave in seconds. a. duration b. frequency c. voltage d. amplitude CORRECT ANSWER b. frequency 8. What is the basic functional and structural unit of the nervous system? a. neuron b. myelin sheath c. electron d. axon CORRECT ANSWER a neuron 9. _ is seen in drowsiness at frequency of 4-7hz
a. alpha
b. beta
c. theta
d. delta CORRECT ANSWER c. theta
10.
A slow wave having three phases +,-,+ or -,+,- and that is seen in the variety of
metabolic disorders is
a. triphaisc
EEG: NORMAL & NORMAL VARIANTS
QUESTIONS WITH CORRECT ANSWERS
Subclinical Rhythmic Electrographic Discharge of Adults (SREDA) CORRECT
ANSWER -5-7 Hz, sharp and slow waves with it
-40-80 seconds
-50+ y/o typically
-T5/T6 + posterior regions
-drowsiness mostly
Alpha Variants CORRECT ANSWER -Slow Alpha Variant: Half the alpha freq
-Fast Alpha Variant: Double the alpha freq.
-may appear in only 1 hemisphere
Alpha CORRECT ANSWER -8-13 Hz
-Voltage is avg 50 uV
-Non-dominant hemisphere 50% taller
-Attenuates w/ eye opening & mental alerting (QNDP?)
-Cornea polarity: +
-Retina polarity: –
Posterior Slow Waves of Youth (PSWY) CORRECT ANSWER -Alpha on top of
delta/intermixed
-Occipital
-Seen in children and young adults-teens/early twenties
-Attenuates in eye opening and disappears in sleep (like alpha does)
-If Alpha attenuates and delta does not then it is NOT PSWY
Beta CORRECT ANSWER -14-30 Hz
-Benzos & Barbiturate cause Beta
-Fronto-Central
-Seen awake, sleep, breach
Mu CORRECT ANSWER -7-11 Hz
-C3/C4
-Polarity: sharpness is negative, roundedness is positive
Rhythmic Mid-Temporal Theta of Drowsiness (RMTD) CORRECT ANSWER -5-7 Hz
-may have a notched peak
-Last from 1-2 secs to 1 min
-seen in drowsiness
14 and 6 Hz Positive Spikes CORRECT ANSWER -Maximal in posterior temporal, seen
elsewhere too
EEG BOARDS PART 2 PRACTICE TEST
QUESTIONS WITH CORRECT ANSWERS
Subacute sclerosing panencephalitis is associated with: CORRECT ANSWER Measles
Localized or lateralized high voltage delta is seen in: CORRECT ANSWER Cerebral
abscess
The EEG of a patient with meningitis is most likely to show: CORRECT ANSWER
Slowing
Periodic lateralized epileptiform discharges are often seen in: CORRECT ANSWER
Herpes simplex encephalitis
Slow spike-and-wave complexes are characteristic of: CORRECT ANSWER LennoxGastaut syndrome
A disease that presents with an acoustic startle response within the first few months of
life: CORRECT ANSWER Tay Sachs disease
During neonatal seizures, the EEG is most likely to show: CORRECT ANSWER Focal
rhythmic activity
What is a typical EEG pattern associated with absence seizures CORRECT ANSWER
3Hz spike-and-wave
EEG manifestations as eyelid myoclonia with and without absences, eye closure
induced seizures, EEG paroxysms and photosensitivity: CORRECT ANSWER Jeavons
syndrome
Hypsarrythmia is a pattern most associated with: CORRECT ANSWER Infantile spasms
A prolonged series of generalized convulsions without any period of consciousness
between them is referred to as; CORRECT ANSWER Status epilepticus
Rhythmic theta activity in the temporal region is most commonly associated with which
seizure type: CORRECT ANSWER Complex partial
The acronym used to describe distinctive EEG waves or complexes that occur between
seizures and are distinguished from the background activity: CORRECT ANSWER
IEDs, interictal epileptiform discharges
Benign Rolandic Epilepsy spikes are seen: CORRECT ANSWER Central-Temporal
Immediately following an absence seizure, the EEG is most likely to show: CORRECT
ANSWER Normal activity
Typical EEG pattern seen in partial seizure disorder: CORRECT ANSWER Anterior
temporal spike focus
The onset of West Syndrome is most likely to occur at age: CORRECT ANSWER 4
months
The EEG of a child with benign Rolandic epilepsy is most likely to show: CORRECT
ANSWER Spikes at C3 and C4
The neurological examination is likely to be abnormal in patients with: CORRECT
ANSWER Lennox-Gastaut syndrome
The EEG of a patient with Lennox-Gastaut syndrome is most likely to show: CORRECT
ANSWER 1.5 Hz spike-and-wave discharges
Immediately following a generalized tonic-clinic seizure, the EEG typically shows:
CORRECT ANSWER Generalized slowing
Landu-Kleffner syndrome is associated with: CORRECT ANSWER Aphasia
A childhood disorder characterized by acquired aphasia, multifocal epileptiform
abnormalities, and focal or generalized seizures: CORRECT ANSWER Landau-Kleffner
syndrome
In patients with myoclonic epilepsy of Janz, seizures are most likely to occur:
CORRECT ANSWER Early in the morning
The EEG is most likely to show hypsarrythmia pattern in patients with: CORRECT
ANSWER West Syndrome
The EEG of a patient with hepatic encephalopathy is most likely to show: CORRECT
ANSWER Generalized triphasic waves
An EEG pattern usually seen in toxic-metabolic encephalopathies, most commonly
hepatic or renal. Usually associated with an alteration of consciousness. CORRECT
ANSWER Triphasic Waves
If the EEG of a term newborn with asphyxia shows nonreactivity and periods of severe
attenuation with bursts of mixed activity every 10 to 20 seconds, what is likely the
cause? CORRECT ANSWER Severe cortical injury due to hypoxic-ischemic
encephalopathy
EEG BOARD PREP (PART 1) |ALL THE EEG BOARD
PREP QUESTIONS WITH 100% CORRECT ANSWERS
The basic unit for measuring current flow is:
a. atomic weight
b. Coulomb
c. Volt
d. Ampere CORRECT ANSWER d. ampere
The basic unit of resistance is:
a. Ohm
b. Coulomb
c. Ampere
d. Volt CORRECT ANSWER a. ohm
Which of the following is NOT a valid expression of Ohm’s Law:
a. R=EI or (R=VI)
b. E=IR or (V=IR)
c. I=E/R or (I=V/R)
d. R=E/I or (R=V/I) CORRECT ANSWER a. R=EI or (R=VI)
Which of the following is NOT a unit for measuring alternating frequencies:
a. cycles per second
b. volts
c. hertz
d. kilocycles CORRECT ANSWER b. volts
Which of the following describes the action of a capacitor?
a. opposes changes in current flow
b. converts A/C to D/C
c. creates a direct current resistance
d. stores energy CORRECT ANSWER d. stores energy
A circuit that allows some frequencies to pass through it, while others are blocked is a:
a. resistor
b. transistor
c. filter
d. reactor CORRECT ANSWER c. filter
A combination of electronic components designed to increase the power, voltage or
current of a signal:
a. amplifier
b. line filter
c. master gain control
d. sensitivity CORRECT ANSWER a. amplifier
A small fluctuating output recorded by the EEG instrument even when there is no input
signal is called:
a. output voltage
b. linear distortion
c. 60Hz interference
d. noise CORRECT ANSWER d. noise
The EEG amplifier is designed so that when input 1 is more negative than input 2, the
deflection will be CORRECT ANSWER upward
Common mode rejection is:
a. the ability of an amplifier to cancel out ECG artifact
b. the characteristic of an amplifier that rejects external interference
c. is dependent on the sampling rate
d. controlled by the 60-cycle notch filter CORRECT ANSWER b. the characteristic of an
amplifier that rejects external interference
Which of the following is most attenuated by a low frequency filter of 1 Hz?
a. 0.5 Hz
b. 5.0 Hz
c. 10.0 Hz
d. 0.1 Hz CORRECT ANSWER d. 0.1 Hz
Time constant is defined as the time required for the deflection to fall (decay):
a. to 47% of the peak deflection
b. 57% of the peak deflection
c. 77% of the peak deflection
d. to 37% of the peak deflection CORRECT ANSWER d. to 37% of the peak deflection
An EEG record has 3/sec spike & wave discharges. Both the spike and the slow wave
have voltages of 100uV. If this discharge is recorded with a LFF of 5Hz and a sensitivity
of 10uV/mm, what would be the deflection of the spike and the wave?
a. spike 10mm & wave 6mm
b. spike 6mm & wave 10mm
c. spike 10mm & wave 10mm
d. spike 6mm & wave 6mm CORRECT ANSWER a. spike 10mm wave 6mm
A high frequency setting of 35Hz would attenuate 50Hz muscle activity by
approximately what percentage:
a. 10%
b. 20%
c. 40%
d. 100% CORRECT ANSWER c. 40%
According to ACNS Guidelines, recording on Clinical EEG on Digital Media requires
monitors to have between 25 & 35mm/second horizontal scaling and a:
a. maximum of 1,000 data points/second to accurately display EEG on the monitor
screen
b. minimum of 100 data points/second to accurately display EEG on the monitor screen
c. maximum of 100 data points/second to accurately display EEG on the monitor screen
d. minimum of 1,000 data points/second to accurately display EEG on the monitor
screen CORRECT ANSWER b. MINIMUM of 100 data points/second to accurately
display EEG on the monitor screen
The filters creating a very narrow band pass that should RARELY be used clinically are:
a. LFF 5.0Hz & HFF 70Hz
b. LFF 5.0Hz & HFF 15Hz
c. LFF 0.1Hz & HFF 70Hz
d. LFF 0.1Hz & HFF 15Hz CORRECT ANSWER b. LFF 5.0Hz & HFF 15Hz
During the recording of cerebral activity, the calibration input voltage is changed from
50uV to 100uV…what will be the result?
a. no effect on the activity being recorded
b. a two-fold increase in amplitude
c. a one-half reduction of amplitude
d. clipping of the waveform CORRECT ANSWER a. no effect on the activity being
recorded
A spike is printed out on paper and measures 16mm peak to peak, the sensitivity of the
instrument is 7uV/mm and a calibration signal of 50uV causes a deflection of 7.1mm…
what is the voltage of the spike?
a. 1.2uV
b. 112uV
c. 12uV
d. 24uV CORRECT ANSWER b. 112uV
What input voltage is necessary to give a calibration deflection between 5 and 10mm if
the sensitivity is 30uV/mm?
a. 10uV
b. 50uV
c. 100uV
d. 200uV CORRECT ANSWER d. 200uV
According to the ACNS Guidelines 2006, the minimum sampling rate for EEG data,
should be at least how many times the highest HFF setting:
a. two
b. three
c. four
d. ten CORRECT ANSWER b. three
In a record with 10Hz alpha activity, when the display epoch is changed from 10
seconds/display screen to 20 seconds/display screen, the frequency of the activity will
be:
a. 5Hz
b. 15Hz
c. 20Hz
d. 10Hz CORRECT ANSWER d. 10 Hz
In a DC calibration wave, if in Channel-B compared to channel-A, is “slower”, what
instrument change would have been made to channel B:
a. display epoch length
b. decrease LFF
c. increase HFF
d. sensitivity CORRECT ANSWER b. decrease LFF
Guidelines for recording digital EEG are written by:
a. the American Society of Electroneurodiagnostic Technologist (ASET)
b. the American Academy of Neurology (AAN)
c. the American Clinical Neurophysiology Society (ACNS)
d. the Organization of Societies of Electrophysiological Technology (OSET) CORRECT
ANSWER c. the American Clinical Neurophysiology Society (ACNS)
The term RAM means:
a. read only memory used for archiving data
b. the amount of data that can be stored on a rewritable CD
c. the amount of data that can be stored on a DVD
d. temporary memory storage that is critical to rapid computer operations CORRECT
ANSWER d. temporary memory storage that is critical to rapid computer operations
Three basic computer PORTS are:
a. intranet, internet & extranet
b. internal, external & bifid
c. serial, paradoxical & US
d. serial, parallel & USB CORRECT ANSWER d. serial, parallel & USB
The best metals for clinical EEG recording are:
a. gold-plated lead, nickel or silver
b. silver-silver chloride, platinum or gold
c. tin, copper, or silver-silver chloride
d. stainless steel, platinum or silver CORRECT ANSWER b. silver-silver chloride,
platinum or gold
Which electrodes do NOT record directly from the brain?
a. depth
b. sub-dermal
c. subdural
EEG BOARD PREP: PART I QUESTIONS WITH
CORRECT ANSWERS
Which of the following may be indicated by the presence of blood in the CSF?
a) subdural hemmorhage
b) localized intracerebral hemorrhage w. no communication w/ ventricles
c) extradural hemorrhage
d) subarachnoid hemorrhage CORRECT ANSWER d
Focal or unilateral suppression and slowing
a) generalized sz disorder
b) drowsiness in an elderly pt
c) subdural hematoma
d) renal failure CORRECT ANSWER c
SDS CORRECT ANSWER safety data sheet
According to OSHA, when must electroneurodiagnostic equipment be checked for
leakage current, ground resistance, and electrical safety CORRECT ANSWER
semiannually
reduction of health care-associated infections is addressed by
a) national pt safety goals
b) ACNS guidelines
c) CMS
d) HIPPA CORRECT ANSWER a
what type of electricity provides a steady source of current flowing in one direction only?
a) alternating correct
b) magnetism
c) direct current
d) ampere CORRECT ANSWER c
life-threatening current could pass through a pt if
a) the machine ground is not intact
b) the common mode rejection ratio is high
c) impedances are not balanced
d) electrodes of differing metals are used CORRECT ANSWER a
which of the following is most closely related to the measurement of voltage in relation
to current and resistance?
a) Coulombs law
b) Ohm’s law
c) Paley-Winer therorem
d) Nyquist theory CORRECT ANSWER b
Avoid the use of this in EEG because it may increase the capacitive current to a
potentially dangerous amount
a) common ground
b) extension cord
c) Ohm meter
d) Non-cephalic electrodes CORRECT ANSWER b
which of the following is grounds for disciplinary action according to ABRETs code of
ethics?
a) being found to have been ineligible to take the credential exam, even if the credential
has already been earned
b) refusing primary responsibility for interpretation of a study
c) not using the credential after it has been earned
d) not identifying oneself as credentialed CORRECT ANSWER a
according to the ABRET code of ethics, a credentialed tech should report to ABRET if
a) they have been convicted of a felony related to their work in neurodiagnostics
b) they received a poor performance review from their employer
c) they have not been keeping current in their primary field of employment
d) they lose their certificate CORRECT ANSWER
which of the following is the standard of conduct for credentialed techs?
a) ACNS guidelines
b) ASET competencies
c) the joint commission safety standards
d) ABRET code of ethics CORRECT ANSWER d
which of the following is a violation of ABRET code of ethics?
a) not joining a professional organization
b) not striving to keep current in the tech
c) being disrespectful to coworkers
d) teaching other techs w/o proper credentials CORRECT ANSWER b
when is it permissible to release pt info to a 3rd party?
a) when requested by another physician
b) when pt provides written consent
c) when it is in the best interest of the pt
d) when the pt provides verbal consent CORRECT ANSWER b
once EEG data is acquired there is an expectation that the info will be protected. This
means
a) only medical director can remove data files from the department
b) all staff are accountable for protecting the pt confidentiality
c) pts may never have access to the raw data
d) the viewing of data is restricted to neurologists CORRECT ANSWER b
the central aspect of using the “minimum necessary” amount of protected health info
needed to accomplish the intended purpose of the use, disclosure, or request is a part
of which act?
a) health insurance portability and accountability act
b) sunshine act
c) insurance act
d) affordable care act CORRECT ANSWER a
a stat EEG has been ordered on a woman who experienced a generalized tonic-clonic
sz. she is confused. while the tech is running a baseline, a man enters claiming to be
her husband. if he asks about the record, the tech should
a) tell the main to remain quietly in the room
b) tell the man what the recording reveals
c) ask the man to verify his identity
d) ask the man to wait for a physician to speak with him CORRECT ANSWER d
a business associate agreement is required when
a) staff work for more than one healthcare entity
b) medical records are shared
c) a new staff member is hired
d) medical records are handled in the department CORRECT ANSWER b
a tech should only discuss EEG findings with
a) pt’s nurse
b) pt’s primary care physician
c) interpreting electroencephalographic
d) consulting neurologist CORRECT ANSWER c
lateralized periodic discharges are most likely associated with
a) herpes simplex encephalitis
b) metabolic encephalopathy
c) atypical absence seizures
d) generalized tonic-clonic seizures CORRECT ANSWER a
in the EEG laboratory, the major concern for transmission of infection is through
a) blood
b) food
c) air
d) insects CORRECT ANSWER a
when testing an outpatient w/ active TB, it is necessary for the
a) instrument to be covered w/ sterile drape
b) tech to wear a mask
c) pt to wear a mask
d) recording room to have negative flow CORRECT ANSWER c
EEG BOARD PREP PRACTICE QUESTIONS WITH
CORRECT ANSWERS
What stage of sleep will you find vertex waves? CORREC ANSWER N1
What stage of sleep will you see sleep spindles? CORREC ANSWER N2
What stage of sleep will you see POSTS? CORREC ANSWER N1
What would an EEG look like of someone who has down syndrome? CORREC
ANSWER Normal
If a patient is becoming “deeper” in a coma, triphasic waves are most likely to do what?
CORREC ANSWER Disappear
What normal activity can be seen in C3/C4? CORREC ANSWER Mu
What is seen most often in children? CORREC ANSWER Rolandic spikes
What region do you see Rolandic spikes? CORREC ANSWER central
At which conceptual age do you begin to see delta brushes? CORREC ANSWER 32-34
weeks
electrocebral inactivity is defined as no EEG activity over what? CORREC ANSWER 2
microvolts
Immediately following an absence seizure the EEG will be? CORREC ANSWER normal
beta coma most commonly results from what? CORREC ANSWER drug overdose
a skull defect will result in what EEG pattern? CORREC ANSWER breech rhythm
What feature is most diagnostic of psychogenic PNES? CORREC ANSWER no
disruption of the PDR
an electrographic seizure is characterized by what activity? CORREC ANSWER
episodic rhymes activity
What is most useful when determining localization and polarity? CORREC ANSWER
montage
what normal variant has positive polarity? CORREC ANSWER lambda
according to guidelines what is the bandwidth for routine EEGs? CORREC ANSWER 1-
70 hz
how many millimeters are in one centimeter? CORREC ANSWER 10 mm
what is unilateral spikes considered ? CORREC ANSWER focal abnormality
what are the 3 best ways to describe EEG patterns and seizures? CORREC ANSWER
morphology, location, frequency
what is another name for small sharp spikes ? CORREC ANSWER BETS
what makes lambda different from posts? CORREC ANSWER occurs with eyes open
are spikes considered abnormal? CORREC ANSWER yes
what type of activity will a neonatal seizure show on an EEG? CORREC ANSWER focal
rhythmic activity
What montage should be used for an ECI according to guidelines? CORREC ANSWER
double distance
which filter setting will record the greatest effect on a 70 Hz wave? CORREC ANSWER
70 Hz
what is most attenuated by a low filter of 5 Hz CORREC ANSWER .1 Hz
what localization is most used in referential montages? CORREC ANSWER amplitude
A patient with ms will have what type of EEG? CORREC ANSWER normal
what is the value in psychiatric disorders? CORREC ANSWER rules out seizures
If a patient has a skull defect it is very important to what? CORREC ANSWER
document history
When evaluating abnormal discharges what 2 things should you document? CORREC
ANSWER level of consciousness and movement
what activity will be seen on an EEG 2 days after a transient ischemic attack (TIA)
CORREC ANSWER normal
With rapidly increasing dosage, which medications will have the most sedative effect on
the patient? CORREC ANSWER barbiturates
What is used to treat infantile spasms? CORREC ANSWER ACTH
EEG BOARD PREP QUESTIONS WITH CORRECT
ANSWERS
Mu Rhythm CORRECT ANSWER -c3/c4 region
-7-11Hz
-does not block with eye opening
-easy to see with eyes open
-blocks unilaterally with contralateral hand
-asymmetrical and asynchronous
-NORMAL
Beta CORRECT ANSWER ->14 HZ
-detected during wakefulness, enhanced during drowsiness, and decreased in deeper
sleep
-seen on barbiturates and benzodiazepines
Lambda waves CORRECT ANSWER -NORMAL, awake
-sharp waves occurring in occipital region (o1/o2) during wakefulness
-visually scanning a picture in a lit room
-physiological, eyes OPEN
-saccadic eye movement
-4-6hz
Small sharp spikes / BETS CORRECT ANSWER -occurs in stage 1/stage 2
-peaks at 30-60 years
-temporal region
-occurs sporadically and short duration
-NORMAL benign variant
Wicket Spikes CORRECT ANSWER -Single spike or 6-11 hz Mu like shape seen in
drowsiness and light sleep.
-mid temporal region
-seen in adults over 30
-NORMAL benign variant
14&6hz positive spikes CORRECT ANSWER -posterior/temporal region (t5/t6)
-normal benign variant
-light sleep
-best seen in referential montage
-runs last less than 2 seconds
-seen in a lot of adolescents
sleep spindles CORRECT ANSWER -11-14hz , 1/2 second duration
-central regions
-asynchrony is abnormal after 2years old
-stage 2 sleep
Hypnagogic Hypersynchrony CORRECT ANSWER -2-6years old
-central/frontal regions
-paroxysmal bursts high voltage, 3-4.5hz
-normal variant of drowsiness
Dilantin toxicity CORRECT ANSWER ataxia (loss of control of body muscles)
Laplacian montage CORRECT ANSWER -source reference deviation
-looks at only the electrodes that are closest to the point of interest
-emphasizes localized waveforms
Deja vu CORRECT ANSWER -complex partial sz
-automatisms/impaired consciousness
extreme spindles CORRECT ANSWER -found in MR (mental retardation) patients
-high voltage, anterior dominant
-generalized
OIRDA (Occipital Intermittent Rhythmic Delta Activity) CORRECT ANSWER –
encephalopathy eeg pattern most associated with children
-high amplitude, saw toothed, and reactive to eye opening
Rolandic Spikes CORRECT ANSWER -seen in children
-cento/temporal
-seen in benign rolandic epilepsy
FIRDA CORRECT ANSWER -Frontal Intermittent Rhythmic Delta Activity
-reacts to stimulation
-2-3hz
-rhythmic
-awake adult eeg
Atonic seizure (drop attack) CORRECT ANSWER generalized seizure characterized by
sudden loss of muscle tone and strength; may cause the head to drop suddenly, objects
to fall from the hands, or the legs to lose strength, with falling and potential injury
Tonic seizure CORRECT ANSWER Muscle stiffness, rigidity
photomyogenic response CORRECT ANSWER -normal physiological response to
photic light
-frontal leads
-only seen with eyes closed
EEG STUDY GUIDE FOR REGISTRY (ASET
REVIEW QUESTIONS) WITH CORRECT
ANSWERS
The basic unit for measuring current flow is? CORRECT ANSWER Ampere
The basic unit of resistance? CORRECT ANSWER Ohm
Which of the following is not a valid expression of Ohm’s law?
A. R=EI or R=VI
B. E=IR or V=IR
C. I=E/R or I=V/R
D. R=E/I or R=V/I CORRECT ANSWER A. R=EI or R=VI
Which of the following is not a unit for measuring alternating frequencies?
A. Cycles per sec
B. Volts
C. Hertz
D. Kilocycles CORRECT ANSWER B. Volts
Which of the following describes the action of a capacitor?
A. opposes changes in current flow
B. converts alternating current to direct current
C. creates direct current resistance
D. stores energy CORRECT ANSWER D. stores energy
What is a filter? CORRECT ANSWER A circuit that allows some frequencies to pass
through it, while others are blocked
What is an amplifier? CORRECT ANSWER A combination of electronic components
designed to increase the power, voltage or current of a signal.
A small fluctuating output recorded by the EEG instrument even when there is no input
signal is called:
a. output voltage
b. linear distortion
c. 60Hz interference
d. noise CORRECT ANSWER D. noise
The EEG amplifier is designed so that when input 1 is more negative then input 2, the
deflection will be? CORRECT ANSWER Upward
What is common mode rejection? CORRECT ANSWER the characteristic of an
amplifier that rejects external interference
Which of the following is most attenuated by a low frequency filter of 1 Hz?
A. .5hz
B. 5hz
C. 10 hz
D. .1hz CORRECT ANSWER D. 0.1hz
Time constant is defined as the time required – CORRECT ANSWER for the deflection
to fall (decay) to 37% of the peak deflection.
A high frequency setting of 35hz would attenuate 50hz muscle activity by approximately
what percentage? CORRECT ANSWER 40%
According to ACNS Guidelines, recording clinical EEG on digital media requires
monitors to have? CORRECT ANSWER Between 25 and 35 mm/second horizontal
scaling and a minimum of 100 data points/second to accurately display EEG on the
monitor screen.
The filter creating a very narrow band pass that should rarely be used clinicallya. LF 5.0 and HF 70hz
b. LF 5.0 and HF 15hz
c. LF 0.1 and HF 70hz
d. LF 0.1 and HF 15hz CORRECT ANSWER B. LF 5.0 and HF 15hz
During the recording of cerebral activity, the calibration input voltage is changed from
50uv to 100uv. What will be the result?
A. no effect on the activity being recorded
B. a two-fold increase in amplitude
C. a one half reduction of amplitude
D. clipping of the waveform CORRECT ANSWER A. no effect on the activity being
recorded
According the ACNS guidelines 2006, the minimum sampling rate for EEG Data, should
be at least____________times the highest high frequency filter setting. CORRECT
ANSWER Three
In a record with 10hz alpha activity. When the display epoch is changed from 10
seconds per display screen to 20 seconds per display screen, the frequency of the
activity will be________ CORRECT ANSWER 10hz
Guidelines for recording digital EEG are written by: CORRECT ANSWER The American
clinical neurophysiology society (ACNS)
The term RAM means: CORRECT ANSWER TEMPORARY MEMORY STORAGE
THAT IS CRITICAL TO RAPID COMPUTER OPERATIONS
Three basic computer ports are: CORRECT ANSWER serial, parallel, usb
The best metals for clinical EEG recording are_________? CORRECT ANSWER Silversilver chloride, platinum or gold
Which of the following is not related to measuring electrode resistance?
A. opposition to direct current flow
B. measurement while the electrode is unattached to the scalp
C. measurement with an ohmmeter
D. opposition to alternating current flow CORRECT ANSWER D. opposition to
alternating current flow
The electrode site that is located 1cm above, one third the distance out from the left
external auditory meatus toward the left outer canthus is called? CORRECT ANSWER
T1 or F9
Due to a central scalp lesion, C4 has to be relocated 4mm anteriorly. The technologist
should:
a. relocate C3 4mm anteriorly
b. make no other placement changes
c. relocate P3 4mm anteriorly
d. relocate all electrodes in the right parasagittal plane 4mm anteriorly CORRECT
ANSWER a. relocate C3 4mm anteriorly
A patient can become the pathway for least resistance and therefore electically
susceptible to shock when;
a. the recording instrument is turned on
b. the electrode test is utilized
c. depth electrodes are used
d. the patient has an indwelling heart catheter CORRECT ANSWER d. the patient has
indwelling heart catheter
Eye leads placed at the outer canthus of each eye will record:
a. all eye movements
b. horizontal & vertical eye movements
c. only vertical eye movements
d. mainly horizontal eye movements CORRECT ANSWER d. mainly horizontal eye
movements
which of the following is not a physiological artifact?
a. perspiration
b. gloss kinetic response
c. 60hz interference
EEG BOARD EXAM QUESTIONS WITH CORRECT
ANSWERS
Common Medication Types (7) CORRECT ANSWER -Antipsychotic
-Antidepressant
-Anxiolytic or Hypnotic Drugs
-Anticonvulsant/Anti-Epileptic Drugs
-Ethanol
-Anesthetic Agents
-ACTH
Antipsychotics CORRECT ANSWER -Clozapine
-Risperdal
-Ability
-Zyprexa
-Seroquel
Antidepressants CORRECT ANSWER -Celexa
-Effexor
-Cymbalta
-Lexapro
-Prozac
-Zoloft
-Lithium
Anxiolytic or Hypnotic Drugs CORRECT ANSWER -Benzodiazepines (Xanax, Valium,
Ativan)
-Barbiturates (Phenobarbital)
Anticonvulsant/Anti-Epileptic Drugs (AEDs) CORRECT ANSWER -Ativan
-Banzel
-Carbatrol/Tegretol
-Cerebyx
-Depakote/Depakene
-Diastat
-Dilantin
-Keppra
-Klonopin
-Lamictal
-Lyrica
-Neurontin
-Topamax
-Trileptal
-Valium
-Zonegran
-Zarontin
Related Diagnostic Procedures CORRECT ANSWER -MRI
-PET
-CT
-Angiogram
-WADA
-SPECT
MRI (Magnetic Resonance Imaging) CORRECT ANSWER -Uses a magnetic field and
radio waves to create detailed images of the organs and tissues within your body
-Cross sectional MRI images are used, but it can also be used to produce 3-D images
PET (Positron Emission Tomography) CORRECT ANSWER -Uses a radioactive drug
(aka tracer) to show the functional activity of tissues and organs
-PET is commonly used in seizure patients to localize the part of the brain that is
causing the seizure activity
-The test evaluates glucose metabolism in the brain using the tracer (usually FDG)
CT (Computerized Tomography) CORRECT ANSWER -Combines series of x-ray
images taken from different angles and then creates cross-sectional images that look at
bones, blood vessels and soft tissues.
-Faster than an MRI
Angiogram CORRECT ANSWER -Minimally invasive test that uses x-rays and contrasts
to visualize vessels in the brain
-Can show aneurysm, AVM, blood clot, stroke
-Used with Wada test
Wada CORRECT ANSWER -Also known as an intracarotid sodium amobarbital study
-Looks at language and memory on one side of the brain at a time so that if the side that
controls language or has better memory, the surgeon may consider further testing prior
to epilepsy surgery
SPECT (Single Photon Emission Computerized Tomography) CORRECT ANSWER -A
radioactive substance (tracer) to evaluate blood flow in the brain
-An “ictal” SPECT can be done right after a seizure to localize seizure activity
What does HIPAA stand for? CORRECT ANSWER Health Insurance Portability and
Accountability Act of 1996
HIPAA CORRECT ANSWER -Mandated significant changes in legal and regulatory
environments governing health payments, benefits, privacy, etc.
-Title II (Administrative Simplifications)
-Ensures security of medial data and info
-Patients have the right to make requests for:
1) copies of medical records
2) amendment to medical record
3) account disclosures of PHI (personal health info)
4) limit info about oneself in hospital directory
ABRET Code of Ethics CORRECT ANSWER Principles that have been adopted by the
Board of Directors in order to encourage personnel to aspire to the highest possible
professional practice.
An ABRET Registered technologist or Certified individual shall… CORRECT ANSWER
- Do everything in his or her power to insure that the current Guidelines of the
American Clinical Neurophysiology Society are complied with the department in which
he or she works - Preserve human dignity, respect patient’s rights and support the well-being of the
patient under his or her care; avoid discrimination against individuals on the basis of
race, creed, religion, sex, age, and national origin. - Appreciate the importance of thoroughness in the performance of duty, compassion
with patients and the significance of the tasks he or she perform. - Preserve the confidentiality of medical and personal info of a patient.
- Strive to remain abreast of current technology and to study and apply scientific
advances in his or her specialty. Carry out their professional work in a competent and
objective manner. - Abide by laws related to the profession and to general public health and safety and
avoid dishonest, unethical or illegal practices. - Refuse primary responsibility for interpretation of testing or monitoring of
Electroencephalograms, Evoked Potentials, NIOM, LTM, and Autonomic Nervous
System Testing for purposes of clinical diagnosis and treatment. Individuals who are
licensed or otherwise authorized by practice standards to provide interpretation are
excluded. - Be truthful, forthcoming, and cooperative in their dealings with ABRET.
- Be in continuous compliance with ABRET’s rules (as amended from time to time by
ABRET). - Respect ABRET’s intellectual property rights.
Electrodes are placed after… CORRECT ANSWER measuring, marking and prepping
the scalp
What system is used for EEG head measurements? CORRECT ANSWER International
10-20 System
What are advantages of the International 10-20 System? CORRECT ANSWER –
Internationally accepted standard format for placing electrodes on scalp
-anatomically proven correlatefor each electrode
-uniform spacing of electrods
-a universal system of labeling electrode locations