Which of the following factors is the LEAST important determinant of postdural puncture headache?
One hundred children who are to have strabismus surgery are enrolled in a research protocol. Fifty receive a new antiemetic and 50 receive a placebo preoperatively. Fifteen children in the treatment group and 37 children in the control group have nausea and vomiting postoperatively. Which of the following analyses is most appropriate for determining the statistical significance of the group differences?
Each of the following would slow induction with a volatile anesthetic agent EXCEPT
Which of the following findings differentiates the pickwickian syndrome from morbid obesity?
The need for increased doses of nondepolarizing muscle relaxants in patients with extensive burns is best explained by
Which of the following is the primary physiologic response in a neonate exposed to a hypothermic environment?
Hyperkalemia in response to the administration of an intubating dose of succinylcholine is associated with each of the following disorders EXCEPT
A 32-year-old man with acute aortic regurgitation is scheduled to undergo emergency aortic valve replacement. Heart rate is 110 bpm, blood pressure is 90/35 mmHg, and pulmonary artery occlusion pressure is 14 mmHg. Cardiac index is 2.2 L/min/m2. Which of the following is the most appropriate management?
A 62-year-old man is undergoing elective coronary artery bypass grafting and aortic valve replacement for three-vessel coronary artery disease and aortic stenosis. Shortly after intubation, heart rate increases from 75 to 100 bpm and blood pressure decreases from 130/70 to 70/40 mmHg with acute, severe ST-segment depression in lead V5. Which of the following is the most appropriate management?
Which of the following is most effective in decontaminating an anesthesia machine that was splattered with HIV-contaminated blood?