Twenty minutes after thiopental induction for femoral herniorrhaphy, a 34-year-old woman is breathing spontaneously and receiving nitrous oxide-oxygen (2 liters each) and enflurane 3% by face mask. Pulse is 90 bpm, blood pressure is 80/60 mmHg, end-tidal enflurane concentration is 2%, and end-tidal carbon dioxide tension is 48 mmHg. Which of the following is most likely to occur on skin incision?
A 22-year-old woman with preeclampsia has undergone emergency cesarean delivery during general anesthesia. At the completion of the surgery, attempts at reversal of vecuronium are unsuccessful. Each of the following could be a cause of this failure EXCEPT
(A) hypoalbuminemia
(B) hypothermia
(C) perioperative administration of gentamicin
(D) perioperative administration of magnesium sulfate
(E) respiratory acidosis
A
The mortality rate of patients given drug A is 12% (8 of 66) and the mortality rate of patients given drug B is 15% (10 of 66). Which of the following tests is most appropriate to compare these mortality rates?
A 70-year-old man undergoes cross clamping of the aorta for repair of an abdominal aneurysm. Which of the following methods is most appropriate for decreasing hypotension associated with removal of the cross clamp?
(A) Administration of a phenylephrine bolus when the cross clamp is removed
(B) Correction of any base deficit with sodium bicarbonate during clamping
(C) Decrease of anesthetic to allow blood pressure to increase to 20% above preclamp levels
(D) Volume loading to increase pulmonary artery occlusion pressure prior to removal
(E) Infusion of dopamine 10 minutes prior to removal
A 60-kg 25-year-old woman is undergoing laparoscopy in the Trendelenburg position during general anesthesia. Five minutes after peritoneal inflation, the peak airway pressure required to deliver a tidal volume of 800 ml increases from 25 cmH2O to 60 cmH2O. SpO2 decreases from 100% to 80% and systolic blood pressure increases from 110 mmHg to 140 mmHg. Which of the following is the most likely cause?