No matter what type of eye monitoring electrode placements you use, you should always

test function pt move eyes up, down, lt & rt, documenting

What is the stage of sleep and what patterns are present?

Stage II sleep, spindles and vertex waves, K complexes

Route all power cords and cables

away from walkways and so they do not cross each other

The EEG response to hyperventilation would be considered abnormal when

the build up consists of focal delta

The patient with narcolepsy _____.

often has episodes of weakness precipitated by laughter

What does HIPAA stand for?

Health Insurance Portability and Accountability Act

The term prevalence refers to

pts of defined population given diagnosis at moment

According to ACNS Guidelines, requires monitors to have _ to accurately display EEG

25-35 mm/s horizontal scaling; minimum of 100 data points/s

Sleep deprivation is helpful activating epileptiform activity because

stress & exhaustion activate abn's & ensure pt falls asleep.

Left hemisphere found dominant for language in rt handed individuals, what % of the time?

approximately 90-95% of the time

The distance from Fz to Pz is

40% of the distance between the nasion and the inion

Waterless gel or foam antiseptics may be used

Only when soap and water are not immediately available

identified acetylcholine as a neurotransmitter

Uniform Determination of Death Act

irreversible cessation of circulatory & respiratory function, irreversible cessation of all function of entire brain

How would a technologist monitor glossokinetic artifact by using additional electrodes?

One electrode on the patient's jaw and one under the chin

studbud

Duplicate of EEG Part 1 Practice Exam.1

164 termsStudBud Administration20 plays

EEG 997 broken into 6 parts (as well as jumble questions)

Flashcards164 cardsFPractice quizPHost liveL

Questions 164

Answers

1
How much voltage would be recorded if 25 μV beta activity is recorded using a LFF of 1 Hz?
7.5 μV
25 μV
1 μV
17.5 μV
2
What artifact is seen in the anterior temporal and frontal polar leads on this sample?
Lateral Rectus
Pulse
FIRDA
Nystagmus
3
No matter what type of eye monitoring electrode placements you use, you should always
place one electrode above and one below the eyes
place the electrodes above the eyes
test function pt move eyes up, down, lt & rt, documenting
place the electrodes below the eyes
4
What is the stage of sleep and what patterns are present?
REM, Saw toothed rapid lateral eye mvts, low voltage bkgd
Stage III, less than 50% delta
Stage IV sleep, greater than 50% delta
Stage II sleep, spindles and vertex waves, K complexes
5
Under HIPAA, congress provided civil & criminal penalties for entities that misuse PHI.
false
true
6
Body tissue contains excessive fluid:
hyperplasia
myelitis
edema
Inflammation
7
If Grid 2 is more negative or less positive than Grid 1, the deflection will be ____ .
down
no deflection
up
8
Identify the diffuse low voltage spikes in this sample?
small sharp spikes
ECG artifact
Benign epileptiform transients of sleep
electrode artifacts
9
Never use an extension cord with END instruments.
false
true
10
Using Nyquist Theorem, minimum sampling rate to clearly resolve a 70Hz waveform?
70
120
140
100
11
An olfactory aura is often
a smell.
accompanied by amnesia.
false sense of familiarity with the current situation
a dream-like sense of strangeness.
12
If 60 Hz interference reaches these 2 inputs of amplifiers, how much will be amplified?
10 Volts
10 millivolts
10 nanovolts
1 microvolt
13
Route all power cords and cables
away from walkways and so they do not cross each other
under the bed
toward the electrical outlet nearest the doorway
14
Most seizures are
caused by head injuries
due to drugs.
idiopathic.
caused by brain tumors.
15
Causes decreased CO₂, vasoconstriction & ↓ peripheral blood flow. (select all that apply)
Cheyne-Stokes Breathing
Valsalva maneuver
hypocapnia
hyperventilation
16
Slow waves of youth attenuate with
fist clenching of contralateral hand
eye closure
eye opening
clapping or other external sounds
17
Required to have a P & P Manual accessibleto employees
false
true
18
Cortical neurons communicate via
the brainstem
synapses
glial cells
digital instant messaging
19
The EEG response to hyperventilation would be considered abnormal when
the build up is of high amplitude up to 150 μV
the build up is frontally dominant
the build up returns to baseline within 30 to 60 seconds
the build up consists of focal delta
20
The patient with narcolepsy _____.
is an obese male who snores loudly
often has episodes of weakness precipitated by laughter
has a space occupying lesion in the brain
has an epileptiform EEG
21
Sleep spindles are considered to be abnormal in the following conditions:
During Stage II sleep
Spindle coma
In a 36 year old patient
In a patient with TIAs
22
Due to a central scalp lesion, C4 has to be relocated 4 mm anteriorly. The technologist should
relocate C3 4 mm anteriorly
make no other placement changes
relocate P3 4 mm anteriorly
relocate all RT parasagittal plane 4 mm anteriorly
23
In LTM the electrode set up is
tailored to the patient
standard International 10-20 System of Electrode Placement
extended International 10-20 System of Electrode Placement
24
The artifact from palatal myoclonus is most evident in the EEG derivation
A1-A2
O1-O2
C3-C4
Fp1-Fp2
25
Which of the following is not a characteristic of REM sleep?
K-complexes
saw tooth waves
reduced EMG activity
low voltage mixed frequency EEG activity
26
What is the prominent feature of this sample?
14 and 6 Hz positive bursts
Rhythmic Mid Temporal Discharge
PLED’s
Phantom spike and wave
27
What does HIPAA stand for?
Hospital Information Privacy Awareness Act
Hospital In Patient Awareness Act
Health Information Privacy and Accountability Act
Health Insurance Portability and Accountability Act
28
The term prevalence refers to
the intensity of a patient's symptoms
the number of symptoms accompanying a disease
number of new pts diagnosis appearing over time
pts of defined population given diagnosis at moment
29
The suffix -"itis" means
incision
excision
inflammation
tumor
30
According to ACNS Guidelines, requires monitors to have _ to accurately display EEG
25-35 mm/s horizontal scaling; minimum of 1000 datapoints/s
25-35 mm/s horizontal scaling; maximum of 1000 datapoints/s
25-35 mm/s horizontal scaling; minimum of 100 data points/s
25-35 mm/s horizontal scaling; maximum of 100 datapoints/s
31
The single most important source of information in reducing diagnostic uncertainty
is the history
is the patient's spouse
is the EEG
is the patient's mother
32
Sleep deprivation is helpful activating epileptiform activity because
more slow wave sleep is recorded after sleep deprivation
stress & exhaustion activate abn's & ensure pt falls asleep.
after staying up drinking caffeine, pt wired & wide awake
33
Unknown cause, may follow viral infection in kids taken ASA; n/v, personality Δ, szs & LOC
Reyes Syndrome
Todd’s Paralysis
Paget’s Disease
Rassmussen’s Encephalitis
34
A sharp wave could have a duration of
20 msec
300 μV
160 msec
150 μV
35
Left hemisphere found dominant for language in rt handed individuals, what % of the time?
85-90% of the time
approximately 90-95% of the time
approximately 75% of the time
approximately 50% of the time
36
Color filters can sometimes block photoconvulsive responses
false
true
37
How much deflection will occur if the calibration input is set at 20uV & sensitivity is7uV/mm?
5 mm deflection
10 mm deflection
3 mm deflection
7 mm deflection
38
Neonate is born at 29 wks GA. EEG performed when 8 wks old. Conceptional age is _ weeks
37
21
42
33
39
Which of the following does not attenuate alpha rhythm?
eye closing
drowsiness
active mental concentration
eye opening
40
The distance from Fz to Pz is
40% of the distance between the nasion and the inion
identical to the distance from the nasion to Fz
20% of the distance between the nasion and the inion
identical to the distance from C3 to P3
41
Waterless gel or foam antiseptics may be used
When hands are visibly soiled
Instead of soap and water
Only when soap and water are not immediately available
42
Otto Loewi _____.
first developed collodion electrode application method
developed the EEG electrode used in many labs today
first to record EEG in animals
identified acetylcholine as a neurotransmitter
43
Uniform Determination of Death Act
irreversible cessation of circulatory & respiratory function
irreversible cessation of all function of entire brain
44
John Knott and Charles Henry were among the many investigators of
transcranial doppler studies
spectral analysis of EEG
polysomnography
electromyography
45
Since distances are double in ECI recordings, it isn't necessary to apply full set electrodes
true
false
46
An increased number of white blood cells
leukocytosis
meningitis
encephalitis
inflammation
47
Vertex transients or "V waves" are found in what stage of sleep?
REM Sleep
Stage III exclusively
Stage I and Stage II
Stage I exclusively
48
Of extended duration; slow to develop
acute
chronic
pathological
necrosis
49
Ability of the instrument to output voltage difference between 2 inputs to single channel is
Phase Reversal
Cancellation
Differential Amplification
Deflection
50
A surface positive event found in the occipital head regions during drowsiness:
POSTS
14 & 6 Hz positive spikes
BETS
sleep spindles
51
How would a technologist monitor glossokinetic artifact by using additional electrodes?
One electrode on the patient's jaw and one under the chin
Superior Outer Canthus to Inferior Outer Canthus
Inferiororbital electrodes
Placing 2 electrodes on 1 hand & placing hand on chest
52
Which can be elicited by having the patient scan acomplex image?
POSTS
Lambda
Alpha rhythm
Posterior slow waves of youth
53
Each channel of the digital EEG instrument has
records 1 electrode compared to several other electrodes
records difference between 1 electrode & system reference
records the electrode of interest referenced to Cz
records one electrode compared to the ground
54
Slow, rolling eye movements are seen
during drowsiness
during wakefulness with eyes open
in stage III sleep
in narcolepsy
55
To document maximum alertness during the recording
calling name, clap, or painful stim if patient is in a coma
turn up the volume on the TV
ask the nurse for sedation
make sure pt had several cups of coffee or soda
56
Café-au-lait spots and neurofibromas are associated with
Spina bifida
Friedreich’s ataxia
Sturge-Weber Syndrome
Von Recklinghousen’s disease
57
The localization method used in referential montages is:
all of the above
area of greatest amplitude
phase reversal
areas of cancellation aka areas of equipotential
58
Which of the following EEG features would indicate a poor prognosis?
reactivity to auditory stimuli
normal rhythms
burst suppression
presence of sleep states
59
Keeping equipment clean is very important because: (select all that apply)
dust within the CPU can cause problems
electrode paste contain ingredients that are corrosive.
food particles & liquid are damaging equipment
unclean surfaces in can transmit disease
60
What should tech do if they suspect that the EEG channels are recording EKG artifact?
Monitor EKG & compare timing. Change to bipolar montage.
Ask the patient to relax
Use a straingage around the patient's upper chest.
Ask the patient to roll onto their side.
61
Input 1 = + 100 μV and Input II = + 100 μV. The waveform will:
remain at a flat neutral position with no deflection
deflect upward
deflect downward
62
According ACNS Guidelines 2006, minimum sampling rate, should be at least _ times HFF setting.
three or more
one
two
63
Alpha rhythm is _____. (select all that apply)
normally reactive to eye opening
interspursed with POSTS during wakefulness
the dominant waking background rhythm
8-13 Hz
64
Time constant is measured in
seconds
microvolts
microvolts per millimeter
millimeters
65
A capacitor is a device that
measures an electric charge
stores an electric charge
diverts an electric charge
repells an electric charge
66
A fourth degree burn involves
Blistering
Bone and other tissue
Dryness
Leathery appearance
67
Relationship between voltage, sensitivity and deflection is: . (Select all that are correct.)
voltage is equal to sensitivity multiplied by deflection
sensitivity is equal to voltage times deflection
sensitivity is equal to voltage divided by deflection
deflection is equal to voltage divided by sensitivity
68
The ketogenic diet (select all that apply
requires that the patient's food be weighed.
challenging due to restrictive nature & burden of food prep
has a fat to carb ratio of 4 to 1.
requires strict compliance.
69
Describe the prominent feature of this sample.
electrode artifact
partial seizure
phase reversal with phase cancellation
vertex sharp transient
70
How would you describe this sample?
Lateral Rectus spikes
Massive myoclonic jerking
Photic driving, with minor photomyoclonic response
3 per second spike and slow wave, classic
71
CJD (Creutzfeldt-Jakob Disease) form of transmission:
prions
fungus
virus
bacteria
72
How much of a .3 Hz wave will be seen if the .3 Hz LFF is on?
100 % of the amplitude
30 % of the amplitude
50 % of the amplitude
70 % of the amplitude
73
Describe pattern with onset aprox. 7 s into sample upon stimulation of thiscomatose patient?
FIRDA
SIRPID
Focal slowing
OIRDA
74
If suspected of being in status epilepticus, what might physician wish to do during the EEG?
Talk to pt's family in waiting room during the recording.
Continue to see patients in his clinic.
Start IV AEDs using the EEG to assure that status resolved
75
Define the two high voltage discharges in this sample (sensitivity 50 μV/mm)?
Myoclonic seizure
Burst suppression
EMG artifact
Normal pattern with swallow artifact
76
Localize abn in sample by selecting all that apply in the answers below.
The spike is negative at F4
The spike is negative at F8
The origin of the spike is located between Fp2 and F8
The spike is negative at FP2
77
Federal law bans an EEG technologist from the following: (Select all that apply.)
Applying any cosmetic including lip balm in the work area
Eating and drinking in the work area
Smoking in the work area
Handling a contact lens in the work area
78
Deflection occurs if calibration input is set at 50 μV & sensitivity is set at 7 μV/mm?
7 mm deflection
1 mm deflection
5 mm deflection
10 mm deflection
79
The technical standards for performing EEG evaluations for electrocerebral incativity are set
ACNS
ASET
ASNM
ABRET
80
Evaluation of a CNS disease that may have infectious etiology, the technologist should
observe the usual universal precautions
request that electroencephalographer to perform the study
reschedule procedure until definite diagnosis has been made
not be concerned with any precautionary measures
81
The most common artifact seen on an EEG recording is
Nystagmus
Bell's Phenomena artifact
Pulse artifact
Ballistocardiographic artifact
82
Patients with _ have severe excess of urea in blood due to acute or chronic _.
encephalitis, alcoholism
uremia, renal failure
83
6 month old pt, which of the choices best describes the sample?
Normal
Phantom spike and wave
Infantile spasms with hypsarrhythmia
Burst suppression
84
Sharp wave recorded periodically by scalp leads & confirmed by EKG monitoring channel
Glossokinetic potentials
PVC artifact
Eye movements
EMG
85
What type of artifact would a Vagal Nerve Stimulator produce on an EEG recording?
↓ voltage 60 Hz scalp leads; ↑ voltage 60 Hz EKG leads
theta bursts of a few seconds duration
rhythmic delta in the frontal areas
isolated spike artifacts seen in the temporal electrodes
86
A person who is more electrically susceptible than the general population is
one who is on a ventilator
one who is young
one with some sort of conductor going into the heart
one who is post ictal
87
Independent, bilateral spikes are considered ABM except in which of the following conditions?
When found in the temporal head regions
When present in the awake adult
If 14 and/or 6 Hz positive spikes
If PLEDs
88
The EEG change most often seen with Sturge-Weber Syndrome is
triphasic waves
3 Hz generalized spike and wave
voltage depression over the affected hemisphere
electrical status epilepticus in sleep
89
After a MVA, pt has ha, neck pain, dizziness, mood swings & insomnia. The most likely finding:
no abnormalities
an epileptic focus in the temporal lobe
hydrocephalus on the CT
the appearance of REM sleep within a minute of sleep onset
90
Applying brief firm pressure to Erbs Point
will help relax the patient
something done in Evoked Potentials only
is a way to prep the site for an electrode placement
form of painful stimulation to maximum alertness during EEG
91
The two steps involving skin preparation before electrode application are
wash skin with liniment soap and air dry the skin
removal of horny layer, scratch to reduce motion potentials
separate the hair into four sections and clip in place
wash electrodes & skin same solution to avoid electrode pops
92
Which of the following sleep transients is well defined by age 2 to 3 months?
V waves
sleep spindles
POSTS
K complexes
93
A simple partial seizure is
not associated with loss or change in consciousness
one with prolonged, complicated symptoms
always produced by a focus in the temporal lobe
initiated by loss of consciousness.
94
Grid 1 has an input of (-70 μV) and Grid 2 has an input of (-35μV)
105 μV and downward
105 μV and upward
35 μV and upward
35 μV and downward
95
Benign Rolandic Epilepsy is associated with
no structural pathology
structural pathology
intractable seizures
developmental selay
96
Which of the following is not a distinct characteristic used to describe EEG waveforms?
morphology
polarity
periodicity
dimension
97
The term "complex" in complex partial seizures indicates ______.
impairment of consciousness
associated with mental retardation
involving upper and lower extremity muscles
genetically determined
98
The discovery of electromagnetism lead to the development of
blood pressure monitors
galvanometers
thermography
99
A normal response to HV would include:
bitemporal spike and slow wave
3 per second spike and slow wave
a build up of slow activity
hypnagogic hypersynchrony
100
Reactivity of brainwave patterns
is a change in appearance in response to a stimulus
is an abnormal finding
difference in electrical potential between 2 electrodes
101
Common Mode Rejection is
controlled by the 60-cycle notch filter
characteristic of amplifier rejects external interference
is dependent on the sampling rate
the ability of an amplifier to cancel out ECG artifact
102
Describe the sample (30 second page with sensitivity of 50 μV/mm)
tonic-clonic seizure and muscle activity
focal spikes
absence seizure
complex partial seizure
103
How is eye opening and closing an activation procedure? (select all that apply)
Eye opening causes attenuation of bkgd activity in occipital
Epileptiforms can be activated by eye opening & closing.
Eye closing ↑ amplitude of bkgd activity in occipital
Eye opening & closing brings out REM in Narcoleptic patients
104
Voltage is:
Resistance of material to flow of direct current; Unit = Ohm
Opposition to the flow of alternating current; Unit = Ohm
Flow of electrons through a pathway; Unit = Ampere
Potential charge difference between two points; Unit = Volt
105
Glia means
referential
joyful
bipolar
glue
106
Generalized tonic/clonic seizures which continue for 30 minutes or more are
characterized by 14 and 6 hertz positive spikes
characterized by a normal EEG
treated by oral medications
a medical emergency
107
Charge is measured in
cathodes
amperes
anodes
coulombs
108
What artifact is likely in the sample at Fp2?
Lateral Rectus Spikes
Nystagmus
Prosthetic eye on the left
Typical EOG
109
In this adult pattern, what is seen in this sample and is it normal or abnormal?
alpha coma
focal slowing
RMTD
abnormal with asymmetrical sleep spindles/left CVA
110
The technologist is expected to wash his/her hands immediately after removing gloves.
No, if gloves worn hands clean enough for the next task
Yes.
111
It is common for a defect in skull either from surgery or injury to produce which patterns:
wicket spikes
mu rhythm
breach rhythm
focal slowing
112
Normal brain function is dependent on adequate _____ and _______.
circulation, oxygenation
IQ, psychotropic medication
background frequency, photic driving
blood pressure, leukocytosis
113
Midline theta rhythm is 5-7 Hz "spiky" waveform which & is found in what % of gen. population?
10%
< 1%
25%
50%
114
What artifact is noted at electrode "O2"?
nystagmus
respiration artifact
EKG artifact
EOG artifact
115
Most pts don't need procedures explained, to save time just start measuring head as soon sat ↓.
False
True
116
A system of assessing a patient's level of consciousness is called
HIPAA
apgar score
glasgow coma scale
eye opening and closing
117
No problems will be caused if an EEG recording is done during dialysis.
false
true
118
Excruciating & irresistible need to move legs upon relaxing to sleep would indicate a diagnosis
sleep apnea
CJD
narcolepsy
restless leg syndrome
119
78 yo pt w/HTN, smokes, awakens discover cannot speak or move rt side. Most likely diagnosis
non-convulsive epilepsy
multiple sclerosis
migraine
stroke
120
Voltage of waveform, if the sensitivity is set at 7uV/mm?
126 μV
242 μV
187 μV
86 μV
121
At a sensitivity of 30μV/mm, how much voltage is represented by 10 mm of deflection?
30 μV
3 μV
300 μV
100 μV
122
Hans Berger was the first to observe EEG changes in relation to what condition?
SSPE
hepatic encephalopathy
hypoglycemia
hyperthyroidism
123
If 1 of montages is poorly designed. Why is it poorly designed? Select one or more:
None, they're all designed well according to ACNS Guidelines
It is not arranged in an anterior to posterior fashion
It does not follow a logical sequence
Begins LT-RT then becomes RT over LT in Channels 14 & 15
124
Extra care should be taken when performing END testing on critically ill pts at bedside because
patients may act as capacitors and hold electric charge
instruments & monitors in ICU may attract lightning strikes
Unconscious or unresponsive & can't tell what they feel
They may have an indwelling heart catheter
125
If tech in field for long time, physician can allow technologist to read EEGs & dictate reports
true
false
126
Used needles should be placed directly in
a glass bead sterilizer
a sharps container for disposal
disinfectant solution for cleaning and reuse
alcohol solution and wiped clean
127
When should the 60 Hz filter or "Notch" filter be used?
As last resort, after extensive efforts taken to eliminate
Routinely, when doing a portable EEG at bedside.
As first line of defence, engaged at all times.
When technologist is running behind schedule
128
Why is the Wilson Lawsuit an important marker in EEG technology? (Select all that apply.)
represented a nosocomial infection acquired in an EEG lab
It was the largest outbreak of Hepatitis B in history
Proves improper disinfection can spread disease
It was caused by a single EEG tech
129
The drowsy recording of a normal adult
is a low voltage mixture of rhythms
is usually not seen on the EEG
130
All environmental noise recorded by EEG instruments is 60 Hz in frequency.
true
false
131
Describe sample, note documentation nurse pricked patient's finger at the onset of the sample
Low voltage normal background
Electrocerebral inactivity (ECI, formerly ECS)
Disconnected power cord
N3
132
No alteration in consciousness is characteristic of what type of seizure?
tonic/clonic
absence
complex partial
simple partial
133
Which filter would most effectively filter out slow waves resulting from sweat artifact?
LFF = 1 Hz
HFF = 15 Hz
HFF = 70 Hz
LFF = 5 Hz
134
Twitch RT face, electrode insures ↑ amplitude, w/out chance of in phase cancellation& w/out EKG
An electrode on right cheek and one on the right hand.
An electrode on the right cheek and one on the left hand.
An electrode on right cheek and one on the left shoulder.
Two electrodes placed 1 cm apart on the right cheek.
135
How would you describe the sample?
periodic epileptiform discharges
REM
burst suppression
absence seizure
136
EEG labs should have dimmer switches, lighting adjusted for thepatient's comfort level.
false
true
137
An artifact that has an appearance that is similar to a spike is
Glossokinetic artifact
pacemeker artifact
eye flutter
Bells Phenomenon
138
Disadvantage of failure to discriminate artifacts when processing data for FFT?
Integrates voltage values of surrounding electrodes
The X-Y plot represents a specific frequency
The normative data is corrupt
May result in corruptions, misleading information.
139
How does "Digital Bio Calibration" differ from traditional analog "Bio Cal"?
Records every recording electrode & system reverence
Bio Cal in digital & analog instruments are exactly same.
Digitization of the signal.
140
END tech can make test appear very _ & works w/_ is most likely to get the patient relaxed
intense, complexity and scientific mystery
simple, ease and efficiency
difficult, efficiency and purpose
complicated, speed and exasperation
141
Which of the following best describes what is seen in this sample?
Wicket spikes
Mu
Triphasic waves
Multiple K-complexes
142
Recording EEG signals that are very low in amplitude in midst of 60 Hz noise because
of characteristic of CMR in the differential amplifier
copper shielding in the patient rooms
phase reversal
special coating on EEG electrodes shield from 60 Hz activity
143
The resting membrane potential of a neuron is
- 80 mV
+/- 180 mV
- 180 mV
+ 80 mV
144
Select from the list below, the false statement about current.
Current is movement of electrons in a conductor
Current may be AC or DC
Current flows where source of voltage & conductive pathway
Current is measured in coulombs
145
Elderly pt who notes difficulty in learning the names of new neighbors & recalling old friends
probably has Parkinson's Syndrome
likely to have an aneurysm
most likely is experiencing retrograde amnesia
most likely has age associated memory impairment
146
Rare fatal do, measles, kids, dementia, myoclonic jerks & szs; EEG periodic complexes 4 – 15 s
Creutzfeldt-Jakob Disease
Mycosis
Bacterial Meningitis
Subacute sclerosing panencephalitis
147
What are the possibilities of the origin of the slowing in this sample?
Artifact from the tongue (Glossokinetic artifact)
Vertical Eye movement
lateral eye movement
Gen. intermittent slowing, may be normal elderly drowsy pts
148
The trigeminal nerve
permits eye movement
permits tongue movement
aids in swallowing
is the major sensory nerve of the face
149
Name the normal variant in the illustration?
BETS
wicket spikes
breach rhythm
mu rhythm
150
What stage of sleep is this and how do you know?
N2, Vertex waves and K-Complexes
REM, Rapid Eye Movements
N1, SEMS
N3, Diffuse slowing
151
What are the four aspects of digital data collection which dictate signal reproduction quality?
Aliasing, Nyquist Principle, Critical SR, & A\D conversion
Critical SR, Horizontal Resolution, Dwell Time, and Aliasing
Continuous voltage Δ, Digitized, Sampling Skew, & Filtering
Horizontal resolution, Vertical resolution, Sampling skew
152
What is the prominent feature of this sample?
14 & 6 Hz positive bursts
PLEDs
RMTD
artifact drip
153
Persons entering field should have an associates degree & training from accredited END school
replaces the need for taking credentialing exams.
disqualifies registered techs who have been in the field
doesn't apply to credentialed technologists in field of END.
is a legal requirement
154
Cleaning is the same thing as disinfecting and disinfecting is the same thing as sterilizing
true
false
155
Electrocerebral inactivity is defined as
exposure to extended and uninterrupted periods of cable TV
absence of all electrical activity of cerebral origin
level 5 on the Glasgow Coma Scale
nonresponsiveness to painful stimulation & calling name
156
Which of the following is related to an alpha coma pattern?
usually indicates a good prognosis
reactivity to external stimuli
an atypical distribution of alpha
is only present when the patient is alert and oriented
157
Involuntary motor &/ vocal tics, premonitory urges, onset in childhood or adolescence:
Tourette's Syndrome
Rasmussen's Syndrome
Sturge-Weber Syndrome
Reyes Syndrome
158
The frequency range of beta is
0.5 to 5 Hz
2-14 Hz
frequencies of 14 Hz or lower
frequencies of 14 Hz or higher
159
Which procedures are not within the scope of practice of Neurodiagnostictechnologists?
Phlebotomy and Radiology
Polysomnography and Nerve Conduction Studies
Electroretinography and electronystagmography
Electroencephalography and Evoked Potentials
160
It is common for defect in skull, resulting from surgery or accident, to produce which pattern?
breach rhythm
Mu rhythm
spindles
BETS
161
The basic unit of resistance is
coulomb
volt
ohm
ampere
162
What would be a good technical description of the sample?
3 per second spike and slow wave, classic
generalized slowing
hypnagogic hypersynchrony
blink artifact
163
Which of the following describes the action of a capacitor?
stores energy
converts alternating current to direct current
opposes changes in current flow
creates a direct current resistance
164
If you notice eye mvt artifacts in frontals & in P3 electrode, what is likely cause?
Impedance high @ P3 causes shunting to ground @ Fpz
The impedance is high at Fp1 and Fp2
The patient has an prosthetic right eye.
The P3 and P4 electrodes are switched.

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