In a patient undergoing liver transplantation, sodium bicarbonate and calcium chloride are administered immediately before reperfusion of the transplanted liver to counteract
A 24-year-old woman with abruptio placentae at 38 weeks' gestation has bleeding at the site of the intravenous catheter. Which of the following is the most likely cause?
(A) Diffuse vasculitis
(B) Disseminated intravascular coagulation
(C) Isolated factor VIII deficiency
(D) Primary fibrinolysis
(E) Vitamin K deficiency
B
Brain stem auditory evoked potentials are most likely to be absent during which of the following?
(A) Anesthesia with 1.5 MAC isoflurane
(B) Barbiturate coma
(C) Hypotension to a mean arterial pressure of 50 mmHg
A 30-year-old woman has an abrupt change from sinus to nodal rhythm with unchanged heart rate on ECG during induction of halothane anesthesia. Which of the following is the most likely result of this change?
A 62-year-old patient who is undergoing femoral-popliteal arterial bypass grafting during general anesthesia develops supraventricular tachycardia. Heart rate is 165 bpm and blood pressure is 90/50 mmHg. Which of the following is the LEAST appropriate treatment of the tachycardia?
(A) Adenosine
(B) Esmolol
(C) Phenylephrine
(D) Procainamide
(E) Verapamil
D
Which of the following parts of the infant's airway determines the appropriate diameter of a nasotracheal tube?