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CNIM TEST Questions And Answers With Verified Solutions Latest Updated 2024
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CNIM TEST Questions And Answers With Verified Solutions Latest Updated 2024
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CNIM TEST Questions And AnswersWith Verified Solutions Latest Updated
2024
In BAEP's, cochlear nucleus lesion causes? - ANSWER✔✔ Increased III-V, increased
I-V
Which modality is most useful in monitoring the integrity of the corticospinal
tracts during resection of an intramedullary spinal cord tumor? - ANSWER✔✔ D-
Waves
The stimulus used in a brainstem auditory evoked potential study is a click with a
peak acoustic power in the range of - ANSWER✔✔ 2000 to 4000Hz
Which of the following tibial nerve responses is not a near field response? -
ANSWER✔✔ N31
How many amperes of current will flow in a circuit containing a 2V battery and 10
ohms of resistance? - ANSWER✔✔ 0.2 amps
In BAEP's blood, betadine or irrigation fluid in tubing causes: - ANSWER✔✔
Increase in absolute latency, normal inter-peak latencies
In averaging, the period of analysis is called _______ or ________. - ANSWER✔✔
Epoch, sweep length
,While monitoring BAEP, there was a prolongation of wave I through V by more
than 2 msec. Which of the following choices is NOT a possible cause? -
ANSWER✔✔ Increase of isoflurane anesthesia
Involuntary movement - ANSWER✔✔ Ataxia
Smaller surface of stimulating electrodes: - ANSWER✔✔ Higher Current Density
During posterior fossa surgery, when BAEPs are used for monitoring brainstem
function, it is most important to: - ANSWER✔✔ Stimulate and record from the
contralateral side
P100 of a VEP will have the highest amplitude in which derivation? - ANSWER✔✔
MO-Fz
Cranial nerve VII must be monitored concurrently with BAERs. - ANSWER✔✔ True
Nerves of the body, such as median, ulnar, and femoral are formed from the: -
ANSWER✔✔ Dorsal and ventral rami
Upper motor neuron extends from: - ANSWER✔✔ Precentral gyrus to ventral
horn
Increasing the stimulus rate of BAEPs - ANSWER✔✔ Decreases amplitude and
increases latency
, Which of the following is the normal interocular latency difference of P100? -
ANSWER✔✔ Less than 15 msec
An amplifier sensitivity setting that produces a vertical deflection of 1cm with an
input of 10mV is: - ANSWER✔✔ 1mV/mm
When identifying wave IV and V of a BAEP, which of the following would be most
helpful? - ANSWER✔✔ Cz-Contra ear montage
The maximum leakage current should be - ANSWER✔✔ 100 uA
Wave V is usually the most prominent peak after - ANSWER✔✔ 5.5 msec
Which of the following montages will best demonstrate waves I through V of the
BAEP? - ANSWER✔✔ Cz-ipsilateral ear
P13 Generator - ANSWER✔✔ Spinomedullary junction
An electrode recording from Erb's point is placed - ANSWER✔✔ 2-3 cm above the
clavicle
In BAEP's, perforated or hardened tympanic membrane causes: - ANSWER✔✔
Increase in absolute latency, normal inter-peak latencies
Which of the following temperatures should be annotated as being hypothermic?
- ANSWER✔✔ 34 degrees C
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