Immediately after a retrobulbar block for cataract surgery, the eye grossly protrudes and the patient has the sensation of pressure in the eye. The most appropriate initial intervention is
A 45-year-old patient with chronic alcoholism develops jaundice four days after a cholecystectomy under halothane/morphine general anesthesia. Bilirubin and alkaline phosphatase are elevated, but ALT is only slightly above normal. All values were within normal limits preoperatively. The most likely cause of jaundice is
(A) opioid-induced spasm of the sphincter of Oddi
(B) hepatic dysfunction secondary to halothane exposure
A 26-year-old man who sustained multiple trauma undergoes open reduction and internal fixation of bilateral tibial-fibular fractures during anesthesia with isoflurane. nitrous oxide, and oxygen with positive pressure ventilation. During the procedure, the patient has sudden onset of hypotension, jugular venous distention, deviation of the trachea to the right, and decreased ventilatory compliance. Isoflurane is discontinued and 100% oxygen is administered. Which of the following is the most appropriate next step in management?