One hour after an open cholecystectomy, a 42-year-old patient is hemodynamically stable and breathing spontaneously (rate 10/min and regular) at an FiO2 of 0.4. Fentanyl, isoflurane, nitrous oxide, and pancuronium were used during the procedure. Analysis of arterial blood gases (pH, pCO2, pO2) is most likely to show:
During insufflation of the peritoneal cavity with carbon dioxide at the start of laparoscopy, heart rate increases to 140 bpm, blood pressure decreases to 70/40 mmHg, and a loud murmur is heard through the esophageal stethoscope. The most appropriate immediate step is to
Which of the following is the most common initial manifestation of malignant hyperthermia?
Unilateral or bilateral diaphragmatic paralysis is a complication of each of the following EXCEPT
A patient sustains cardiac arrest while being mechanically ventilated. Which of the following is the most likely effect on PetCO2?
In a 5-kg child, the end-tidal carbon dioxide tension is 35 mmHg during spontaneous ventilation through a Mapleson D system. Which single change is most likely to increase this value?
A 55-kg, 70-year-old woman with mild chronic renal failure is unresponsive 20 hours after an uneventful coronary artery bypass grafting procedure. Anesthetic drugs included fentanyl 3000 mcg, diazepam 35 mg, and pancuronium 20 mg. Which of the following is the most appropriate next step in management?
Mivacurium-induced neuromuscular blockade is prolonged for the greatest period of time in patients who have which of the following conditions?
A healthy 30-year-old woman is undergoing laparoscopy with carbon dioxide insufflation under nitrous oxide 50% in oxygen, isoflurane 0.5%, fentanyl 150 u.g, and controlled ventilation. During the first 15 minutes of the procedure, blood pressure decreases 30%. The most likely cause is
A 4-month-old child undergoing a craniectomy for craniosynostosis is anesthetized with nitrous oxide and halothane. Suddenly the systolic blood pressure decreases from 75 to 30 mmHg, and the PetCO2 decreases from 35 to 6 mmHg. Which of the following maneuvers is LEAST likely to have a beneficial effect?