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ASET CNIM Exam Questions And 100% Correct Answers
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ASET CNIM Exam Questions And 100% Correct AnswersWhich of the following is a reason why a "false-negative" could occur
1. lesion occurs in a structure not involved in the pathway being monitored
2. no significant changes were noted and communicated
3. documentation was incomplete
4. surgical procedure was altered based on changed data - ANSWER lesion is in a
structure not in the pathway being monitored
Sublaminar wires are most commonly utilized to provide what type of corrective force to
the spinal column
1. distraction
2. fixation
3. translation
4. compression - ANSWER translation
As an inducing agent, which of the following medications would have the smallest
impact on the SSEP
1. propofol
2. isoflurane
3. etomidate
4. halothane - ANSWER Propofol
Severe hypothermia
,1. no effect on EP latencies
2. decreased EP latencies
3. increases EP latencies
4. has a variable effect on EP latencies - ANSWER increases EP latencies
The effect of severe hypotension on the EP includes
1. increase in amplitude and decrease in latency
2. decrease in amplitude and increase in latency
3. variable changes in amplitude and increase in latency
4. decrease in amplitude and variable changes in latency - ANSWER decreased in
amplitude and increase in latency
The effects of halogenated agents on the cortical SSEP are
1. increase in latencies and an increase in amplitudes
2. minimal compared with effects on BAERs
3. negligible
4. increase in latencies and decrease in amplitudes - ANSWER increase in latencies and
a decrease in amplitudes
A major disadvantage of monitoring only posterior tibial nerve SSEP during scoliosis
surer is the inability to
1. measure the effects of distraction on the spinal cord
2. measure the effects of translation of the spinal cord
3. detect ischemic injury to the anterior spinal cord
,4. monitor highly variable responses to physiological factors such as heart rate and
blood pressure - ANSWER detect ischemic injury to the anterior spinal cord
One effect of ketamine on the SSEP is to
1. decrease amplitudes
2. increase amplitudes
3. decrease latencies
4. increased latencies - ANSWER increase amplitudes
Maximum variability of cortical EP potentials will most likely occur
1. during changes in anesthesia
2. after opening the surgical site
3. during electrocautery use
4. prior to lumbar laminectomy - ANSWER during changes in anesthesia
The monitoring modality most likely to be affected by a large bolus of muscle relaxant is
the
1. cortical SSEP
2. BAER
3. myogenic evoked potential
4. NMEP - ANSWER myogenic evoked potential
Effect of volatile anesthetic agents on cortical EPs is to
1. decrease latencies
, 2. prolong latencies and decrease amplitudes
3. increase amplitudes
4. decrease amplitudes and decrease latencies - ANSWER prolong latencies and
decrease amplitudes
Drop in temp of the patients legs can cause
1. decrease in amplitude of SSEP waveforms
2. increase in amplitude of L3S response
3. a prolongation of SSEP peak latencies
4. increase in the conduction velocity of the tibial nerve - ANSWER a prolongation of
SSEP peak latencies
During a posterior fossa approach for removal of an acoustic neuroma, an increase in
the latency of wave V is most likely caused by
1. fluid in ear canal
2. retraction of the cerebellum
3. failure to stimulate
4. loss of blood supply to the cochlea - ANSWER retraction of the cerebellum
the ISOLA type of spinal instrumentation usually involves
1. placing of grid electrodes
2. supralaminar placement of of rods
3. severing the cauda equina
4. a combination hook and screw method - ANSWER a combination hook and screw
method
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