CNIM Exam 2 with verified answers
Which of the following are most likely to cause airborne contamination in an operating room?
A- ventilation devices
B- Kerrison particles
C- dust particles
D- bloodborne pathogens - ANSWER: ✔✔C- dust particles
Stimulus artifact during SSEPs can be decreased by
A- keeping the instrument away from florescent lights and video monitors
B- separating stimulating cables from cables of other equipment
C- lowering the impedances of ground and stimulating electrodes
D- using enough muscle relaxant - ANSWER: ✔✔C- lowering the impedances of ground and stimulating
electrodes
All of the following 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 before the consent is signed
C- the surgeon must be informed if the consent has not been signed before surgery starts
D- if illiterate, the patient signs with an "X", after which the witness writes "patient's mark" - ANSWER:
✔✔B- the patient may have sedation before the consent is signed
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- is produced when a wire carrying current induces a magnetic field that in turn creates current in other
wires - ANSWER: ✔✔D- is produced when a wire carrying current induces a magnetic field that in turn
creates current in other wires
The area of greatest risk for ischemic injury during carotid endarterectomy is
A- the 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
Which of the following are most likely to cause airborne contamination in an operating room?
A- ventilation devices
B- Kerrison particles
C- dust particles
D- bloodborne pathogens - ANSWER: ✔✔C- dust particles
Stimulus artifact during SSEPs can be decreased by
A- keeping the instrument away from florescent lights and video monitors
B- separating stimulating cables from cables of other equipment
C- lowering the impedances of ground and stimulating electrodes
D- using enough muscle relaxant - ANSWER: ✔✔C- lowering the impedances of ground and stimulating
electrodes
All of the following 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 before the consent is signed
C- the surgeon must be informed if the consent has not been signed before surgery starts
D- if illiterate, the patient signs with an "X", after which the witness writes "patient's mark" - ANSWER:
✔✔B- the patient may have sedation before the consent is signed
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- is produced when a wire carrying current induces a magnetic field that in turn creates current in other
wires - ANSWER: ✔✔D- is produced when a wire carrying current induces a magnetic field that in turn
creates current in other wires
The area of greatest risk for ischemic injury during carotid endarterectomy is
A- the 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
