CNIM TEST 1 EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
Which of the following do you need to determine the vertical resolution?
A. Time base and bit capacity
B. Display gain and bit capacity
C. Dwell time and Sampling
D. Aplifier sensitivity and bit capacity - ANS D. Amplifier sensitivity and bit capacity
(horizontal resolution would be dwell time and sample rate)
Inappropriately low sampleing rate will produce low frequency representation of digitized
waveform if this is in play.
A. Poor signal
B. Aliasing
C. 60Hz filter effect
D. Inappropriate display gain - ANS B. Aliasing
The ulnar nerve originates from which set of following nerve roots?
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,A. C5-6
B. C6-7
C. C7-8
D. C7-T1 - ANS D. C7-T1
At the superior angel of the popliteal fossa, the common peroneal nerve arises from which
nerve?
A. Superior Tibial Nerve
B. Superior Femoral Nerve
C. Internal Popliteal Nerve
D. Sciatic Nerve - ANS D. Sciatic Nerve
Which of the following may inhibit the postsynaptic neuron?
A. Gamma amino butyric acid
B. Voltage dependent calcium channels
C. Para amino butyric acid
D. Glutamate - ANS A. Gamma amino butyric acid
The electrode impedance is defined as opposition to
A. Direct current flow in the circuit
B. Alternating current flow in the circuit
C. Differential current flow in the circuit
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,D. 60Hz artifact - ANS B. Alternating current flow in the circuit
The assumption that responses of excessive amplitude are likely to contain electrical noise
forms the basis for
A. Digital flitering
B. Dwell time
C. Artifact rejection
D. Signal averaging - ANS C. Artifact rejection
The horizontal resolution of an evoked potential system
A. Should be 20 microsecond per data point or less
B. Has no effect on the aliasing properties of the machine
C. Should be greater than 30 milliseconds per data point
D. Is one half the Nyquiest frequency - ANS A. Should be 20 mircosecond per data point or
less
Given the electrical circuit with a resistance of 1000 ohms and a votage of 10 volts, what is the
current flow?
A. 0.01
B. 0.1
C. 1
D. 10 - ANS A. 0.01
During auditory evoked potential recording using a condensation click will cause
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, A. Cause the tympanic membrane to move outward
B. Cause the tympanic membrane to move inwards
C. Cause the earphone diaphragm to displace inward
D. Cause moist air condensation to settle on the tympanic membrane - ANS B. Cause the
tympanic membrane to move inward
It is most appropriate to monitor median nerve and not tibial nerve for
A. Antieror cerebral artery aneurysms repair surgery
B. Middle cerebral artery aneurysms repair surgery
C. Posterior cerebral artery sneurysms repair surgery
D. Vertebral Basliar artery aneursyms repair surgery - ANS B. Middle cerebral arterty
aneurysms repair surgery
The best way to minimize stimulus artifact while monitory the auditory pathway (BAEP) is to
A. Use alternating clicks
B. Use of headphones
C. Use of rarefaction clicks
D. Use of condensation clicks - ANS A. Use alternating clicks
What is considered the criteria for alarm when monitoring BAEP intra-operatively?
A. Increase amplitude of wave V
B. Decreased amplitude of wave II
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS 100% PASS
Which of the following do you need to determine the vertical resolution?
A. Time base and bit capacity
B. Display gain and bit capacity
C. Dwell time and Sampling
D. Aplifier sensitivity and bit capacity - ANS D. Amplifier sensitivity and bit capacity
(horizontal resolution would be dwell time and sample rate)
Inappropriately low sampleing rate will produce low frequency representation of digitized
waveform if this is in play.
A. Poor signal
B. Aliasing
C. 60Hz filter effect
D. Inappropriate display gain - ANS B. Aliasing
The ulnar nerve originates from which set of following nerve roots?
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,A. C5-6
B. C6-7
C. C7-8
D. C7-T1 - ANS D. C7-T1
At the superior angel of the popliteal fossa, the common peroneal nerve arises from which
nerve?
A. Superior Tibial Nerve
B. Superior Femoral Nerve
C. Internal Popliteal Nerve
D. Sciatic Nerve - ANS D. Sciatic Nerve
Which of the following may inhibit the postsynaptic neuron?
A. Gamma amino butyric acid
B. Voltage dependent calcium channels
C. Para amino butyric acid
D. Glutamate - ANS A. Gamma amino butyric acid
The electrode impedance is defined as opposition to
A. Direct current flow in the circuit
B. Alternating current flow in the circuit
C. Differential current flow in the circuit
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,D. 60Hz artifact - ANS B. Alternating current flow in the circuit
The assumption that responses of excessive amplitude are likely to contain electrical noise
forms the basis for
A. Digital flitering
B. Dwell time
C. Artifact rejection
D. Signal averaging - ANS C. Artifact rejection
The horizontal resolution of an evoked potential system
A. Should be 20 microsecond per data point or less
B. Has no effect on the aliasing properties of the machine
C. Should be greater than 30 milliseconds per data point
D. Is one half the Nyquiest frequency - ANS A. Should be 20 mircosecond per data point or
less
Given the electrical circuit with a resistance of 1000 ohms and a votage of 10 volts, what is the
current flow?
A. 0.01
B. 0.1
C. 1
D. 10 - ANS A. 0.01
During auditory evoked potential recording using a condensation click will cause
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, A. Cause the tympanic membrane to move outward
B. Cause the tympanic membrane to move inwards
C. Cause the earphone diaphragm to displace inward
D. Cause moist air condensation to settle on the tympanic membrane - ANS B. Cause the
tympanic membrane to move inward
It is most appropriate to monitor median nerve and not tibial nerve for
A. Antieror cerebral artery aneurysms repair surgery
B. Middle cerebral artery aneurysms repair surgery
C. Posterior cerebral artery sneurysms repair surgery
D. Vertebral Basliar artery aneursyms repair surgery - ANS B. Middle cerebral arterty
aneurysms repair surgery
The best way to minimize stimulus artifact while monitory the auditory pathway (BAEP) is to
A. Use alternating clicks
B. Use of headphones
C. Use of rarefaction clicks
D. Use of condensation clicks - ANS A. Use alternating clicks
What is considered the criteria for alarm when monitoring BAEP intra-operatively?
A. Increase amplitude of wave V
B. Decreased amplitude of wave II
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
