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CNIM exam questions with answers
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CNIM exam questions with answersthe artery of adamkiewicz is - ANSWER: ✔✔a major feeder vessle to the spinal cord, supplies from the
anterior spinal artery, supplies 2/3 of blood to lower body, at T10
a stroke in which artery would specifically affect the PTN cortical SEP - ANSWER: ✔✔the anterior
cerebral artery
trancranial motor evoked potentials transmit primarily through which spinal cord tract? - ANSWER:
✔✔the lateral corticospinal tract
PTN evoked potentials transmit primarily through which spinal cord tract - ANSWER: ✔✔the fasciculus
gracilis
UN or MN evoked potentials transmit primarily through which spinal cord tract - ANSWER: ✔✔the
fasciculus cuneatus
lower motor neurons primarily exit the spinal cord through - ANSWER: ✔✔the ventral nerve roots
the tibial and common peroneal nerves forms from what nerve - ANSWER: ✔✔sciatic
the nerve roots that extend below the spinal cord make up the - ANSWER: ✔✔cauda equina
the end tip of the spinal cord is known as - ANSWER: ✔✔conus medularis
the nerve root entry level of UN are - ANSWER: ✔✔c8-t1
the best nerve root entry levels for PTN are - ANSWER: ✔✔l4-s3
, if you must change your recording parameters during iom - ANSWER: ✔✔document the changes, but do
not inform the surgeon
why is changing filter parameters during IOM discouraged - ANSWER: ✔✔becuase it may appear that a
change had occured due to surgery
motor monitoring with spinal cord stimulation is most susceptible to - ANSWER: ✔✔vecuronium
for good recordings you must have - ANSWER: ✔✔high input impedece, low electrode impedence
the opposition to alternating current flow is know as - ANSWER: ✔✔impedance
during a scoliosis surgery, you recognize a gradual latency increase of 2.5 msec and amplitudes drop of
more than 45% in the PTN cortical response, the subcortical response appears to be shifted out almost
as much. all other responses amplitudes and latency are unchanged. what is the appropriate action to
take? - ANSWER: ✔✔inform the surgeon immediately that chages consistent with spinal cord injury may
have occured. recommend a wake up test
during the exposure of an anterior cervical surgery, a sudden loss of the left UN cortical response occurs.
the subcortical response recorded from c5s-fpz however, is unchanged. PTN repsonses are unchanged.
what should you do? - ANSWER: ✔✔check you C4 electrode. it may have fallen out
what can increase sep amp? - ANSWER: ✔✔etomidate/ketamine
when testing ssep from the upper extremity, an electrode placed at Erb's pint will record activity
generated from - ANSWER: ✔✔brachial plexus
which montage would you use to confirm a change in the Cz-Fz cortical response to PTN stimulus? -
ANSWER: ✔✔pop fossa
monitoring ssep function may fail to recognize change in - ANSWER: ✔✔anterior spinal cord function
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