A previously healthy 28-year-old woman scheduled for laparoscopic tubal ligation becomes, agitated and refuses to undergo the procedure after being brought to the operating room. This behavior most likely resulted from preoperative administration of
Prolonged respiratory depression following administration of morphine is more likely in patients with chronic renal faillure than in patients with normal kidney function because of
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
A 24-year-old woman requires anesthesia for emergency repair of open fractures of the tibia and fibula. She used cocaine two hours ago. Blood pressure is 170/110 mmHg. Each of the following is useful in managing the hypertension EXCEPT