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CNIM EXAM 2 QUESTIONS AND VERIFIED ANSWERS
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CNIM EXAM 2 QUESTIONS ANDVERIFIED ANSWERS
Which of the following most likely will contaminate an operating room with an
airborne contaminant?
A- ventilation devices
B- Kerrison particles
C- dust particles
D- bloodborne pathogens - ANSWER C- dust particles
Stimulus artifacts during SSEPs may be reduced by
A- positioning the instrument remote to florescent lights and video monitors
B- placing stimulating cables away from cables of other equipment
C- reducing the impedances of ground and stimulating electrodes
D- adequate dose of muscle relaxant - ANS C- decreasing the impedances of
ground and stimulating electrodes
All of the following statements are true of "informed consent" for an operative
procedure except
A- one of the purposes of the consent is to protect the surgeon and hospital from
unauthorized operative procedures
B- the patient may have sedation prior to the signing of the consent
C- consent has not been signed before surgery starts-the surgeon must be
notified
D- if illiterate, the patient signs with an "X", then the witness writes "patient's
mark" - ANSWER B- the patient may receive sedation prior to obtaining the
consent
If you have high frequency noise in a BAEP:
A- Change LFF to 30 Hz
,B- Change LFF to 150 Hz
C- Change HFF from 3000 to 1500 Hz
D- Change HFF to 200 Hz - ANSWER C- Change HFF from 3000 to 1500 Hz
Electromagnetic inductance
A- should never occur in the operating room
B- results only from wires that are not insulated
C- results only from poor ground wires
D- When current-carrying wire induces a magnetic field that in turn induces
current in other wires - ANSWER D-When current-carrying wire induces a
magnetic field that in turn induces current in other wires
Area at greatest risk for ischemic injury during carotid endarterectomy is
A- Middle cerebral artery
B- The posterior cerebral artery
C- The anterior communicating artery
D- the posterior cerebral artery - ANSWER A- the middle cerebral artery
When recording a posterior tibial nerve SSEP, the Fpz ‐ C5s channel records
A- subcortical near‐field potentials
B- stationary lumbar potentials
C- the Erb's point potential
D- subcortical far ‐ field potentials - ANSWER D- subcortical far ‐ field
potentials
Needle electrodes should be discarded and not resterilized if
A- the patient has Hodgkin's disease
B- the patient has Jakob ‐ Creutzfeldt disease
C- the patient has Meniere's disease
,D- the patient has Korsakoff's psychosis - ANSWER B- the patient has Jakob ‐
Creutzfeldt disease
Decreased synchronization of the auditory nerve firing will likely result in
A- a decrease in wave amplitude
B- no change in wave amplitude or latency
C- a decrease in wave latency
D- an increase in wave amplitude - ANSWER A- a decrease in wave
amplitude
Universal Precautions
A- Strategy for preventing disease protection
B- Handwashing after every meal
C- The assumption that every patient has AIDS
D- Use of PPDs with every patient - ANSWER D- Use of PPDs with every
patient
Upper extremity SEPs are transmitted through the:
A- the lateral lemniscus
B- gracilis nucleus
C- the medial geniculate bodies
D- cuneate nucleus - ANSWER D- cuneate nucleus
, Which describes a semi‐critical infectious device?
A- Requires low level disinfection after each
B- Requires high to intermediate disinfection after each use
C- Requires no disinfection after each use use
D- Requires sterilization after each use - ANSWER B- Requires high to
intermediate disinfection after each use
Low frequency sounds are
A- at the apex of the cochlea
B- near the stapes
C- detected along Reissner's membrane
D- adjacent to the round window - ANSWER A- at the apex of the cochlea
During SSEP monitoring, dural or direct cord recordings are useful in that:
A- they have less possibility of artifact during cautery
B- the waveforms are larger in amplitude and require fewer averages
C- the waveforms are more representative of cortical responses to stimulation
D- they present less discomfort to the patient than scalp leads - ANSWER B-
the waveforms are higher in amplitude and require fewer averages
Language
A- is in the right cerebral hemisphere in 85% of the population
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