Exam Questions and CORRECT Answers
TcMEPs - CORRECT ANSWER - Vecuronium will have the greatest impact on what
modality
ketamine - CORRECT ANSWER - which anesthetic agent least attenuates the amplitude
of the cortical potentials
fentanyl - CORRECT ANSWER - which of the anesthetic agents will not obliterate the
transcranial electric motor potential
D waves are resistant to anesthesis while I waves are markedly reduced - CORRECT
ANSWER - regarding the effect of anesthesia on D and I waves:
P100 - CORRECT ANSWER - which waveform is most affected by inhalation anesthesia
propofol - CORRECT ANSWER - which anesthetic drug may cause a minimal increase in
latencies of the BAEP
Neostigmine - CORRECT ANSWER - the effect of muscle relaxants of the non-
depolarizing type can be reversed using
it helps overcome suppression effect caused by anesthesia - CORRECT ANSWER - in
TcMEP we generally use a repeated succession of impulses to stimulate the motor cortex because
decreased spinal cord perfusion - CORRECT ANSWER - what effect does increased CSF
pressure have on the spinal cord perfussion
, conductive hearing loss - CORRECT ANSWER - an increase in absolute latencies only of
the BAer indicates
confirm stim - CORRECT ANSWER - a rostral recording electrode can be helpful when
monitoring D waves in order to
Lumbar tumor removal - CORRECT ANSWER - D waves cannot be monitored for
highly variable and inaccurate - CORRECT ANSWER - recording of BAEPs during
drilling results in waveforms that are
prevent nerve root injuries during spinal cord manipulation - CORRECT ANSWER - what
would be the intraoperative use of Dsep
head/neck positioning - CORRECT ANSWER - During posterior cervical fusion for spinal
stenosis, a global shift in latency cortical and subcortical tibial and ulnar SSEPS are noted an
hour following exposure. this change could be indicative of
hearing loss - CORRECT ANSWER - what is at greatest risk during resection of CPA
tumor
right EEG slowing and Left upper cortical SSEP amplitude decrease - CORRECT
ANSWER - You are monitoring a right carotid. if the patient does not have adequate
collateral flow what changes will you see when the surgeon clamps the artery
decreased beta on side of surgery - CORRECT ANSWER - during Carotid the first eeg
change indicating possible cerebral ischemia is
loss of all waves due to vascular compromise - CORRECT ANSWER - extreme cerebellar
retraction during CPA tumor surgery likely results in