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CNIM Board Prep Book 1 & 2 > Book 1 > Flashcards

Book 1 Flashcards

1
Q

Clavicular, cervical, and scalp sites are commonly used for recording…

A

median nerve potentials

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2
Q

In the CNS, a myelin sheath forms around the…

A

axon

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3
Q

Cortical potentials will be most affected by…

A

Inhalational anesthetics

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4
Q

P14 is a _____-field potential.

A

far

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5
Q

Alternating click polarity…

A

minimizes stimulus artifact

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6
Q

A fused joint is known as…

A

ankylosis

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7
Q

Grounding the stimulated limb during a SSEP procedure decreases…

A

stimulus artifact

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8
Q

Patient history items that do not imact what we monitor, or how we interpret waveforms are…

A

age
sex
size of tumor
ethnicity

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9
Q

Decrease in latency is…
Increase in conduction velocity is…
Cerebellum is…

A

NEVER THE ANSWER

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10
Q

Amplitude decrease is known as…

A

attenuation

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11
Q

Abnormal tissue found on or in an organism, usually damaged by disease or trama

A

lesion

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12
Q

The obstruction of the blood supply to an organ or region of tissue, typically by a thrombus or embolus, causing local death of the tissue

A

infarction

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13
Q

Blood clot, air bubble, piece of fatty deposit, or other object that has been carried in the bloodstream to lodge in a vessel.

A

embolus

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14
Q

Blood clot

A

thrombosis

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15
Q

The time from the beginning to the end of each evoked potential sweep

A

analysis time

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16
Q

Balanced impedance range

A

5k ohms

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17
Q

Multiple sclerosis

A

inflammatory autoimmune disease in which the fatty myelin sheaths around the axons of the brain and spinal cord are damaged. NOT AN INHERITED DISORDER.

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18
Q

Age onset of MS

A

15-40 years

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19
Q

Optic neuritis

A

inflammation of the optic nerve

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20
Q

Optic neuritis is a symptom of…

A

MS

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21
Q

The early and late onset stage of optic neuritis is differentiated by…

A

unilateral (early) or bilateral (late) symptoms

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22
Q

Unthoff’s phenomenon (or sign)

A

A worsening of neurologic symptoms in MS when the body gets overheated from hot weather, exercise, fever or saunas. PTs show PARESTHESIA.

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23
Q

Lhermitte’s sign

A

An electrical sensation that runs down the back and into the limbs from involvement of the posterior columns, and is pronounced by bending the neck forward or backward (MS SYMPTOM)

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24
Q

If SSEPs show a 60Hz a cycle, the first step is to…

A

check the impedance, and adjust rate by 0.1/sec

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25
Q

60Hz cycle has a wavelength of…

A

16.6ms

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26
Q

MS is most likely to show an abnormality in the modality of…

A

Lower SSEPs due to a longer pathway

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27
Q

Contingent negative variation expectancy wave

A

a test of discrimination where a click is sometimes followed by a flash, in which a response is elicited when the flash is present

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28
Q

OSHA

A

occupational safety and health administration

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29
Q

OSHA may ask for…

A

SDS Sheets

Chassis leakage current check records

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30
Q

Chassis leakage current is tested…

A

Bi-annually
Semi-annually
2X PER YEAR

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31
Q

An ethics violation results in…

A

revocations of credentials

NOT STATE/FEDERAL CHARGES

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32
Q

If a patient is obunded, _____ can be used as a patient identifier.

A

PCP

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33
Q

If the patient does not speak english, who is qualified to serve as an interpreter?

A

An appointed hospital interpreter

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34
Q

Hand hygiene guidelines state that hands must be washed for…

A

20 seconds

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35
Q

MRSA is transmitted through…

A

touch

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36
Q

Hepetitis C is transmitted through…

A

blood

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37
Q

Hepetitis B is transmitted through…

A

bodily fluids

38
Q

Clostridium difficile (C Diff) is transmitted through…

A

feces

39
Q

With reference to gloves, hands are washed…

A

prior to and following usage

40
Q

Universal protocol for preventing wong-site, wrong-person, wrong-procedure surgery

A

right patient
right medication
right surgery
right side of surgery

41
Q

“Time out”

A

prior to start of invasive procedure, verify the correct patient, procedure, and body site

42
Q

“Time out” does not confirm…

A

date
time
physician or tech

43
Q

SDS

A

safety data sheets

44
Q

SDS: Collodian

A

adhesive only

45
Q

SDS: Acetone

A

Collodian remover only

46
Q

SDS: Salt Jelly or Electrolyte

A

Conductor only

47
Q

An electrolyte spread between two electrodes would cause a…

A

salt bridge

48
Q

Collodian and acetone should be stored in…

A

a flammable cabinet

49
Q

Flammable cabinet

A

houses substances that are flammable

50
Q

Collodion ingredients

A 
Ethyl ether (a,b)
Ethanol
51
Q

If collodion is ingested…

A

dilute with water

52
Q

If collodion catches fire…

A

do not attempt to extinguish using water

53
Q

If acetone is ingested…

A

induce vomiting

54
Q

If acetone catches fire…

A

extinguish using water

55
Q

Sodium hypochlorite

A

bleach

56
Q

If sodium hypochlorite is ingested…

A

do not induce vomiting. dilute with water

57
Q

The differential input impedance of an amplifier must be…

A

at least 100 meg Ohms

58
Q

Differential inut amplifier average time must be…

A

(horizontal resolution)

20 us/data point or less

59
Q

Gain of the amplifier should be adjustable in steps of not more than…

A

2.5 to 1

60
Q

With the filters of an amplifier wide open, the amplifier bandpass measured at the -3dB points must be…

A

at least 0.1-5,000Hz

61
Q

Noise level of the amplifier must not exceed…

A

2 uV rms

62
Q

Leagage current is present…

A

any time the equipment is plugged in

63
Q

leakage current is impacted by power strips or extension cords by…

A

increasing it

64
Q

The maximum leakage current throug the patient leads should be…

A

10 uA rms to ground

65
Q

Replication for awake evoked potentials require at most…

A

1% latency change

15% amplitude change

66
Q

If the data of an evoked potential is not reproducible…

A

do another set of averages

67
Q

Clinical evoked potential guidelines require documentation of…

A

surgical action
anesthesia
BP/MAP
Core body temperature

68
Q

The role of an IONM with reference to data and the surgeon is to…

A

describe it, not interpret it

69
Q

If normative data is going to be used from another lab, a minumum of…

A

20 neurologically intact patients must be run, falling within the normal distribution

70
Q

Disk EEG electrodes applied with collodion are sealed with…

A

plastic tape or sheet to prevent drying and provide protection from blood or other fluids

71
Q

Earphones are secured using…

A

bone wax, which does not protect the canal from fluid entry

72
Q

BAEP Wave I absolute latency

A

1.4 ms

73
Q

BAEP Wave III absolute latency

A

3.4 ms

74
Q

BAEP Wave V absolute latency

A

5.5 ms

75
Q

BAEP Wave I-III interpeak latency

A

2.0 ms

76
Q

BAEP Wave III-V interpeak latency

A

2.0 ms

77
Q

BAEP wave I-V interpeak latency

A

4.0 ms

78
Q

BAEP A1 is the…

A

left ear

79
Q

BAEP A1 is the…

A

right ear

80
Q

BAEP channel positive input uses…

A

Cz

81
Q

BAEP channel negative input uses…

A

Ai and Ac

82
Q

BAEP Ai is always _____ to the side of stimulation and surgery

A

ipsilateral

83
Q

BAEP Ac is always _____ to the side of stimulation and surgery

A

contralateral

84
Q

BAEP Cz is known as the…

A

vertex

85
Q

BAEP left ear is known as…

A

auris sinister (AS)

86
Q

BAEP right ear is known as…

A

Auris Dextrous (AD)

87
Q

BAEP wave I is only recorded in the…

A

stimulated ear

88
Q

BAEP contralateral channel function validates…

A

white noise masking at the appropriate intensity

89
Q

White noise masking prevents…

A

bone conducted cross over of stimulus

90
Q

Failure to use white noise in BAEPs results in…

A

a false negative, pt deficit

91
Q

BAEPs showing an ipsilateral response but not a contralateral (and vice-versa) response indicates a problem with…

A

gain or the amplifier

CNIM Board Prep Book 1 & 2 (1 decks)

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