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 statements concerning successful blockade of the femoral nerve is true?
(A) It requires that a paresthesia be elicited prior to injection
(B) It provides motor blockade below the knee
(C) It is accomplished with an injection medial to the femoral artery
(D) It permits surgery for entrapment of the lateral femoral cutaneous nerve
(E) It provides anesthesia to the anterior thigh
E
A 65-year-old man has a history of alcohol abuse. Which of the following preoperative serum concentrations would provide the best assessment of synthetic hepatic function?
An infant becomes cyanotic and hypotensive after ventilatory pressures increase to 45 cm H2O during closure of the abdominal wall at the end of a gastroschisis repair. The most appropriate next step is to
(A) administer a muscle relaxant
(B) administer 5% dextrose in lactated Ringer's solution 10 ml/kg