A 13-year-old African American boy has severe abdominal pain after debridement of an open fracture of the lower extremity. His hemoglobin concentration is 10 g/dl and a peripheral blood smear shows elongated crescent-shaped erythrocytes. The most appropriate initial therapy is
(A) sodium bicarbonate administration
(B) dopamine infusion
(C) blood transfusion
(D) volume loading with crystalloid
(E) high-dose corticosteroid administration
D
Which of the following statements concerning the use of epidural anesthesia for extracorporeal shock wave lithotripsy is true?
(A) Adequate anesthesia can be obtained with fentanyl alone
(B) Anesthesia decreases the incidence of hypothermia
(C) Anesthesia decreases the incidence of ventricular dysrhythmias
(D) Anesthesia is unnecessary in paraplegics with absence of sensation below T4
(E) "Loss of resistance" should be performed with fluids rather than air
A multigravid woman is receiving oxytocin by infusion for augmentation of labor. Fetal heart rate is 190 bpm with beat-to-beat variability of 6 to 8 bpm. The most appropriate immediate action would be to
(A) continue observation
(B) sample fetal scalp blood
(C) discontinue oxytocics
(D) administer a beta-adrenergic blocker to the mother
Which of the following is the most likely effect of intramuscular ketamine used for induction of anesthesia in a 2-year-old child undergoing elective surgery?
During protamine administration following separation from cardiopulmonary bypass, blood pressure decreases from 100/70 to 60/30 mmHg and peak inspiratory pressure increases from 26 to 60 cm H2O. The most appropriate next step in management is administration of