Which of the following statements concerning neuroleptic malignant syndrome is true?
A 27-year-old man with a one-month history of quadriplegia at a C6 level is given general anesthesia for cystoscopy. During the cystoscopy, blood pressure suddenly increases to 220/120 mmHg. Further evaluation is most likely to show
During one-lung ventilation, each of the following affects hypoxic pulmonary vasoconstriction in the nonventilated lung EXCEPT
Which of the following malfunctions causes the line isolation monitor to alarm?
Numbness and tingling on the lateral aspect of the thigh 24 hours after uneventful vaginal delivery is most likely a complication of
A 20-kg, 5-year-old boy under treatment for five days for a cerebral contusion not requiring an operation is still unconscious. After three days of mechanical ventilation, humidified oxygen 40% via T-tube is started. Arterial blood gas analysis shows PaO2 120 mmHg, PaCO2 44 mmHg, pH 7.48, and base excess +6. A nasogastric tube is in place and draining to gravity. Daily fluid therapy has been 5% dextrose in 0.5 normal saline solution 500 ml and 5% dextrose in lactated Ringer's solution 500 ml. Serum electrolyte concentrations are sodium 140, potassium 3.2, and chloride 91 mEq/L. Serum osmolality is 300 mOsm/L. Urine output averages 15 ml/hour. Dexamethasone 8 mg/day has been the only drug therapy. This patient most likely requires
Following cardiopulmonary bypass, right ventricular distention is noted after infusion of protamine 40 mg. Pulmonary artery pressure has increased from 25/18 to 50/30 mmHg and systemic arterial pressure has decreased from 110/65 to 0 mmHg. Which of the following is the most appropriate treatment?
A patient undergoes axillary block for placement of an arteriovenous shunt in the forearm. Blockade of the musculocutaneous nerve is not achieved. Injection of a local anesthetic at which of the following sites will provide the required sensory block?
A 26-year-old woman comes to a pain clinic because of pain, swelling and limitation of motion in the right knee for six months following a blow to the knee. Findings on knee arthroscopy and leg roentgenograms are normal. The best trial of therapy is
A 69-year-old man is confused and agitated one hour after preoperative intramuscular administration of scopolamine for awake fiberoptic laryngoscopy. SpO2 measured by pulse oximetry is 97%. Which of the following drugs is most appropriate for treatment of the change in mental status?