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Exam (elaborations)

CNIM EXAM QUESTIONS AND 100% VERIFIED ANSWERS

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CNIM EXAM QUESTIONS AND 100% VERIFIED ANSWERS...

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  • November 2, 2024
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  • 2024/2025
  • Exam (elaborations)
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  • cnim
  • cnim exam
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  • CNIM
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CNIM EXAM QUESTIONS AND 100% VERIFIED
ANSWERS

What is the minimum allowed BAER sweep? - ANSWER 10 milliseconds

The ideal repetition rate for intraoperative BAEPs is... - ANSWER: 31Hz


The peak equivalent SPL of a click should be measured at... - Answer: 1000 Hz.

Which potential will be reversed with click polarity? - ANSWER: Cochlear
Microphonic

The most diagnostic aspect of the BAER is... - ANSWER I-V Interpeak

What is most likely to cause an increase in the I-III interval? - Answer:
Vestibular Schwannoma.

The intensity of sound stimulation at the tympanic membrane is determined by
the... - ANSWER: Acoustic connection between the sound stimulus generator
and the ear.

To best monitor CN VIII function in the OR, the ability to simultaneously
perform... - Answer BAEPs and Electrocochleograms (ECochG).

"Broadband click" refers to... - ANSWER Peak acoustic power is 2-4 kHz.

You are more likely to notice changes during the exposure of a spine surgery
because... - ANSWER: Anesthesia-induced hypotension

In posterior fossa surgery, an increase in the III-V interpeak interval is most
likely caused by... - ANSWER: Traction of the cerebellum

The loss of BAEPs after piercing the internal auditory canal is most likely
because... - ANSWER: disruption of the cochlear blood flow.

In a patient with a hematocrit less than 10%, the SSEP waveforms will... -
ANSWER: Increase in loudness and decrease in delay.

, Spinal cord ischemia following aortic surgery is best recognized by changes in...
- Answer PTN SSEPs.

A surgical patient's falling body temperature, monitored using EPs, can result
in... - ANSWER: Increasing SSEP and BAER latencies.

An unstable blood pressure during SSEP monitoring in the operating room
alters cortical EPs, resulting in... - ANSWER: fluctuating amplitudes.

When the blood flow to the brainstem is significantly diminished, a predicted
shift in the BAEP is... - ANSWER An increased latency of wave V.

Severe hypotension affects the EP in the following ways... - ANSWER: A drop
in amplitude and an increase in delay.

The greatest diversity of cortical EPs will most likely occur... - ANSWER:
During anesthetic changes.

Significant alterations in cervical and cortical SSEPs during IONM indicate
sufficient stimulation of the MN. - ANSWER: No change in peripheral
ANSWERs.

The majority of individuals who have significant EEG alterations following
carotid cross clamping will experience these changes within... - Answer in 20
seconds.

What notable EEG changes should you anticipate to detect with carotid
clamping-induced ischemia? - ANSWER Increased sluggish activity.

Brain activity straight from the cortex (ECoG) has very high amplitude and
typically requires sensitivity in the range of... - ANSWER: 40–100 uV/mm

It is critical to begin monitoring EEG early in a CEA... - ANSWER: Record the
EEG before anesthesia and after induction for comparison during the procedure.

Isolated amplifier inputs are designed to... - ANSWER: Prevent the
transmission of stray currents through the connecting cables to the patient.

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