Which of the following findings is an early indication of cyanide toxicity?
(A) Bronchospasm
(B) Cardiac dysrhythmias
(C) Decreased mixed venous P02
(D) Increased intracranial pressure
(E) Metabolic acidosis
E
In a patient who is receiving nitroglycerin intravenously after a coronary artery operation, peripheral oxygen saturation is 85% and PaO2 is 200 mmHg. The most appropriate management is administration of
A 70-year-old man who has just undergone an abdominal aortic aneurysm repair under halothane anesthesia develops hypertension, dyspnea, and cyanosis shortly after awakening in the recovery room. Administration of furosemide 20 mg intravenously improves the cyanosis within 10 minutes. This immediate effect of furosemide is best explained by
A patient is undergoing thoracotomy in the lateral position. Five minutes after initiation of one-lung ventilation using a double-lumen tube and 100% oxygen, SpO2 decreases from 100% to 65%. Which of the following is the most appropriate initial step in management?
(A) Adding continuous positive airway pressure to the nondependent lung
(B) Adding positive end-expiratory pressure to the dependent lung
(C) Increasing the tidal volume to the dependent lung
(D) Resuming two-lung ventilation
(E) Verifying the position of the double-lumen tube
In a patient undergoing liver transplantation, sodium bicarbonate and calcium chloride are administered immediately before reperfusion of the transplanted liver to counteract