Which of the following findings on the left is most likely to be associated with an increased risk of complications with cannulation of the left internal jugular vein compared with cannulation of the right internal jugular vein?
(A) Longer recurrent laryngeal nerve
(B) Lower location of the cupola of the pleura
(C) More acute angle between the internal jugular and innominate veins
A healthy 57-year-old man with a ureteral calculus is scheduled for immersion extracorporeal shock wave lithotripsy. Which of the following statements is true?
(A) Delivery of the shock wave is timed by the R wave of the ECG
(B) Continuous epidural anesthesia is contraindicated because of the risk for infection
(C) If a regional technique is used, a T10 sensory level is required for adequate anesthesia
(D) If general anesthesia is used, high tidal volumes and low respiratory rate are preferred
(E) Removal of the patient from the bath is accompanied by an increase in blood pressure
A woman is in labor at 40 weeks' gestation and the fetus is in breech presentation. Which of the following will provide adequate uterine relaxation for vaginal delivery?
A 30-year-old man receives spinal anesthesia to the level of T4. Ten minutes later, heart rate and blood pressure abruptly decrease to 30 bpm and 60/25 mmHg, respectively. The most appropriate management is administration of which of the following drugs?
During an operation with cardiopulmonary bypass using a bubble oxygenator, the risk for systemic gas embolization increases when
(A) a filter greater than 20 microns is used in the arterial infusion tubing
(B) gas flow to the oxygenator is decreased below 3 L/min
(C) the operation is a mitral valve replacement
(D) the blood level in the oxygenator reservoir exceeds 1 liter
(E) ventricular fibrillation occurs
C
A 50-year-old woman develops stridor 10 hours after undergoing thyroidectomy. The most appropriate management is administration of which of the following drugs?
After termination of cardiopulmonary bypass, a patient who is chronically digitalized receives digoxin 0.5 mg in error. An ECG shows sinus bradycardia with intermittent sinus arrest; blood pressure is 90/60 mmHg. Which of the following drugs is contraiindicated in this patient?
A patient with a fasting blood glucose concentration of 100 mg/dl undergoes a four-hour operation under general anesthesia without intraoperative administration of glucose. On emergence the most likely finding will be