Which of the effects of epidural morphine is most resistant to intravenous naloxone?
During exploration of the posterior fossa with the patient in the sitting position, blood pressure decreases from 120/70 to 70/40 mmHg, central venous pressure increases from 6 to 16 mmHg, oxygen saturation decreases to 88%, nitrogen is detected by the mass spectrometer, and premature ventricular contractions appear on the ECG. The most appropriate management is to
Which of the following is characteristic of the pharmacokinetics of alfentanil?
A 35-year-old woman with severe myasthenia gravis is scheduled for thymectomy. Which of the following preoperative pulmonary function tests is most likely to be normal?
Which of the following perioperative interventions decreases the risk for renal insufficiency in patients undergoing aortic aneurysm repair?
A patient with chronic obstructive pulmonary disease is undergoing spinal anesthesia to a T6 sensory level. The most pronounced effect on pulmonary function will be a decrease in
Preoperative administration of alpha-adrenergic inhibitors will usually reverse ECG changes due to
A normotensive 66-year-old man undergoes total hip arthroplasty. Mean arterial pressure is maintained at 60 mmHg with isoflurane and labetalol; intraoperative FiO2 is 1.0. Eight units of red blood cells are administered intraoperatively because of an injury to the femoral artery. Five days later, the patient develops jaundice. Which of the following is the most likely cause of the jaundice?
A 30-year-old woman undergoes thyroidectomy under general endotracheal anesthesia. Immediately after extubation while breathing spontaneously, she has laryngospasm that resolves after 60 seconds of continuous positive airway pressure applied by face mask. In the PACU, she develops shortness of breath, tachypnea, hypoxemia, and rales. Which of the following is the most likely diagnosis?
A 1100-g, 10-day-old infant is to undergo ligation of a patent ductus arteriosus after unsuccessful medical treatment. Within three minutes of intravenous administration of atropine 20 mcg, fentanyl 20 mcg, and pancuronium 0.1 mg, systemic blood pressure decreases from 80 to 30 mmHg, heart rate from 180 to 140 bpm, and arterial oxygen saturation from 90% to 80%. The most appropriate management is to