A 54-year-old woman who is scheduled to undergo emergency exploratory laparotomy takes warfarin sodium for anticoagulation. Prothrombin time is 19 sec (control 12 sec). Which of the following agents is most appropriate to reverse the effects of warfarin?
Ninety minutes after administration of succinylcholine 1 mg/kg to a 28-year-old woman, the train-of-four shows a T4:T1 ratio of 25%. This is most consistent with
Upon removal of the epidural catheter after uneventful labor and delivery in a 25-year-old primiparous woman, approximately 1.2 cm of the Teflon catheter is left behind in the epidural space. The patient is informed of the complication. The most appropriate management is
(A) immediate surgical removal
(B) prophylactic antibiotics
(C) lumbar myelogram
(D) monthly neurologic examinations
(E) no intervention
E
At a body temperature of 30°C, resistance to blood flow increases because of
(A) increased hematocrit
(B) increased plasma fibrinogen concentration
(C) increased viscosity of blood
(D) rouleaux formation of red blood cells
(E) sequestration of platelets in portal circulation
A 62-year-old man is scheduled for coronary artery bypass grafting. During induction of anesthesia with fentanyl, high peak inspiratory pressures occur with manual ventilation, and peripheral oxygen saturation decreases from 100% to 94%. The most appropriate management is administration of