Anesthesia Hub

Question 1

During Harrington rod instrumentation for scoliosis, monitoring somatosensory evoked potentials
(A) is unreliable if halothane is used
(B) eliminates the need for a wake-up test
(C) accurately assesses proprioceptive integrity
(D) accurately assesses motor function integrity
(E) is unreliable if nondepolarizing muscle relaxants are used

Answer 1

(C) accurately assesses proprioceptive integrity

Question 2

A neurologically intact 48-year-old woman is scheduled for removal of a parietal lobe arteriovenous malformation. The relative risk for complete resection is to be determined by a test occlusion of the feeding artery. Which of the following intraoperative monitoring techniques is most appropriate for this test?

(A) Brain stem auditory evoked potentials
(B) Cerebral blood flow using radioactive xenon
(C) EEG
(D) Evoked potentials elicited by stimulating the posterior tibial nerve
(E) Transcranial Doppler

Answer 2

D) Evoked potentials elicited by stimulating the posterior tibial nerve