CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
ANASTAMOSIS? -
correct answer ✅-CONNECTION or opening BETWEEN two things
(especially cavities or passages) that are normally diverging or
branching, such as between blood vessels.
-COMMUNICATION BETWEEN ARTERIES
What causes the most airborne bacteria in OR?
a. blood on gown
b. blood spill
c. skin shed
d. patient vent -
correct answer ✅c. skin shed
Nerve that innervates 4th and 5th fingers? -
correct answer ✅Ulnar Nerve
Problem with Bilateral Synchronus Stim? -
correct answer ✅Can mask unilateral problems
,CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
No N20 at baseline could mean? -
correct answer ✅Stroke
What should you check 1st if you lose all waves? -
correct answer ✅Stimulator
Which of the following devices measures electrode resistance?
1. Ammeter
2. Ohmmeter
3. Voltmeter
4. Photometer -
correct answer ✅2. Ohmmeter
If an evoked potential has a voltage of 10uV and the associated
noise has a voltage of 50uV, what is the signal to noise ratio after
100 averaged responses?
1. 1:1
2. 1:2
,CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
3. 2:1
4. 5:1 -
correct answer ✅3. 2:1
To display median nerve SSEP response as an upward deflection,
which of the following must be known?
1. Waveform polarity and latency of the response
2. Waveform polarity and polarity convention of the amplifier
inputs
3. Polarity convention of amplifier inputs and amplitude of the
response
4. Latency of the response and polarity convention of the amplifier
inputs -
correct answer ✅2. Waveform polarity and polarity convention of
the amplifier inputs
If an amplifier is rated as having 120 dB common mode rejection
rate, which of the following ratios of in-phase to out-of-phase
signals would be expected?
, CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
1. 10,000:1
2. 100,000:1
3. 500,000:1
4. 1,000,000:1 -
correct answer ✅4. 1,000,000:1
Which of the following cranial nerves innervates the extraocular
muscles?
1. Optic
2. Facial
3. Abducens
4. Trigeminal -
correct answer ✅3. Abducens
Which of the following is an example of a SSEP far-field subcortical
potential?
1. N20
2. N34
AND ANSWERS
ANASTAMOSIS? -
correct answer ✅-CONNECTION or opening BETWEEN two things
(especially cavities or passages) that are normally diverging or
branching, such as between blood vessels.
-COMMUNICATION BETWEEN ARTERIES
What causes the most airborne bacteria in OR?
a. blood on gown
b. blood spill
c. skin shed
d. patient vent -
correct answer ✅c. skin shed
Nerve that innervates 4th and 5th fingers? -
correct answer ✅Ulnar Nerve
Problem with Bilateral Synchronus Stim? -
correct answer ✅Can mask unilateral problems
,CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
No N20 at baseline could mean? -
correct answer ✅Stroke
What should you check 1st if you lose all waves? -
correct answer ✅Stimulator
Which of the following devices measures electrode resistance?
1. Ammeter
2. Ohmmeter
3. Voltmeter
4. Photometer -
correct answer ✅2. Ohmmeter
If an evoked potential has a voltage of 10uV and the associated
noise has a voltage of 50uV, what is the signal to noise ratio after
100 averaged responses?
1. 1:1
2. 1:2
,CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
3. 2:1
4. 5:1 -
correct answer ✅3. 2:1
To display median nerve SSEP response as an upward deflection,
which of the following must be known?
1. Waveform polarity and latency of the response
2. Waveform polarity and polarity convention of the amplifier
inputs
3. Polarity convention of amplifier inputs and amplitude of the
response
4. Latency of the response and polarity convention of the amplifier
inputs -
correct answer ✅2. Waveform polarity and polarity convention of
the amplifier inputs
If an amplifier is rated as having 120 dB common mode rejection
rate, which of the following ratios of in-phase to out-of-phase
signals would be expected?
, CNIM PRACTICE EXAM QUESTIONS
AND ANSWERS
1. 10,000:1
2. 100,000:1
3. 500,000:1
4. 1,000,000:1 -
correct answer ✅4. 1,000,000:1
Which of the following cranial nerves innervates the extraocular
muscles?
1. Optic
2. Facial
3. Abducens
4. Trigeminal -
correct answer ✅3. Abducens
Which of the following is an example of a SSEP far-field subcortical
potential?
1. N20
2. N34
