A 68-year-old woman who is receiving urokinase for deep venous thrombosis and pulmonary emboli requires emergency laparotomy for a bleeding gastric ulcer. Which of the following agents is most appropriate to reverse the effects of urokinase?
Each of the following is an effect of rapid infusion of mannitol EXCEPT
An 80-kg, 70-year-old woman is scheduled for a mastectomy. She has a history of congestive heart failure treated with digoxin 0.25 mg daily. Preoperative examination shows a sinus rhythm at 80 bpm and blood pressure of 110/70 mmHg. Laboratory studies show a serum potassium concentration of 4.2 mEq/L and a serum digoxin concentration of 1.5 mcg/ml. Five minutes after induction of general anesthesia, ventricular bigeminy is noted; blood pressure is 85/65 mmHg, SpO2 is 97%, and PetCO2, is 20 mmHg. Which of the following is the most appropriate management?
A morbidly obese patient is to undergo gastric stapling during general anesthesia. Following preoxygenation and induction, the oxygen saturation decreases after 40 seconds of laryngoscopy and attempted intubation. The rapid onset of arterial desaturation is most likely due to
The most likely cause of a fetal heart rate pattern of variable decelerations to 90 bpm is
After brachial plexus block, a patient has sensation over the inner aspect of the upper arm. Block of which of the following nerves would obtund this sensation?
In patients who have undergone cardiopulmonary bypass, administration of milrinone is most likely to result in an increase in which of the following?
During spinal anesthesia in a healthy patient, the sensory level rises to C8. The patient will most likely have
A 26-year-old woman has headache, nausea, and photophobia 36 hours after cesarean delivery for chorioamnionitis using subarachnoid block. Temperature is 38.8°C and leukocyte count is 14,200/mm3. Which of the following is the most appropriate next step in management?
Which of the following statements concerning air embolism during intracranial operations is true?