Which of the following is most likely to decrease in the affected area following a paravertebral lumbar sympathetic block?
(A) Cutaneous blood flow
(B) Pinprick sensation
(C) Sweating
(D) Temperature sensation
(E) Venous capacitance
C
After the first 70 minutes of a transurethral resection of the prostate, a 70-year-old man becomes confused and has tachycardia, hypertension, and shortness of breath. Serum sodium concentration is 116 mEq/L. After informing the surgeon that the procedure should be terminated as soon as possible, the most appropriate next step would be to
(A) administer furosemide
(B) administer labetalol
(C) administer 3% sodium chloride
(D) change the irrigating solution to normal saline
Twenty minutes after an axillary block, the patient reports feeling over the "back of the hand." Examination shows normal sensation over the lateral aspect of the dorsum of the hand and the dorsal base of the thumb and index finger. Supplementary anesthesia of this area can be provided by blocking which of the following nerves?
Which of the following statements concerning nalbuphine is true?
(A) It causes partial reversal of morphine-induced ventilatory depression
(B) Analgesia is partially mediated by delta receptor agonism
(C) Its antagonist effects are mediated at kappa receptors
(D) Duration of action is significantly shorter than that of morphine
(E) Ventilatory drive is not depressed
A
A 55-year-old man requires intravenous lidocaine for multifocal premature ventricular contractions occurring in the first hour after a below-knee amputation. He has alcoholic cirrhosis, portal hypertension, and ascites. Which of the following correctly describes the appropriate modification of the usual loading bolus and maintenance infusion of lidocaine?
(A) Larger bolus, faster infusion
(B) Larger bolus, slower infusion
(C) Smaller bolus, faster infusion
(D) Smaller bolus, slower infusion
(E) No change necessary
B
A patient with a fasting blood glucose concentration of 100 mg/dl undergoes a four-hour operation under general anesthesia without intraoperative administration of glucose. On emergence the most likely finding will be