The most common clinical viral infection following homologous blood transfusion is caused by
Desflurane at a stable alveolar concentration of 7%
Which of the following is the most likely cause of the increased incidence of right ventricular failure in patients with morbid obesity?
A Fluotec vaporizer is set to administer halothane 4% using a fresh gas flow of 4 L/min. If the diluent gas flow is increased to 8 L/min, and at the same time the room temperature increases from 20 to 25°C, the approximate concentration of halothane delivered to the patient would be
A patient with lumbar disk disease requires lumbar epidural injection of a corticosteroid for control of low back pain. Which of the following statements concerning this treatment is true?
Halothane anesthesia is usually associated with an increase in
A 68-year-old man has a permanent DVI pacemaker that has been functioning appropriately. Which of the following is most likely to cause conversion to VOO pacing?
A 62-year-old man is in the intensive care unit after successful craniotomy for excision of a meningioma. Blood volume is normal; laboratory studies show serum sodium concentration of 120 mEq/L, serum osmolality of 260 mOsm/L, urine sodium concentration of 50 mEq/L, and urine osmolality of 820 mOsm/L. Which of the following is the most likely explanation?
A 67-kg, 52-year-old man is undergoing heart transplantation. After implantation of the donor heart and discontinuation of cardiopulmonary bypass, isoproterenol is administered intravenously to maintain heart rate greater than 100 bpm. During the next 10 minutes, blood pressure decreases from 105/55 mmHg to 75/40 mmHg. Heart rate is 102 bpm and cardiac output is 5.8 L/min. The most appropriate management is administration of
A patient with low cardiac output following coronary artery bypass grafting is transferred to the intensive care unit where a chest roentgenogram confirms proper placement of the pulmonary artery catheter. Serial pulmonary artery occlusion pressures are then measured. Immediately following inflation of the balloon with 1.5 ml of air in the wedged position, brisk bleeding is noted from the endotracheal tube. The most appropriate immediate management is to