Four days after subarachnoid hemorrhage and surgical clipping of a cerebral aneurysm, a patient develops cerebral artery vasospasm. Appropriate treatment includes each of the following EXCEPT
(A) administration of nimodipine
(B) controlled hypertension
(C) hemodilution to hematocrit of 33%
(D) hyperventilation to PaC02 of 25 to 30 mmHg
(E) increasing preload
D
A patient is undergoing exploration of a stab wound to the left side of the neck. On awake laryngoscopy, the left vocal cord is in midposition and the right vocal cord is abducted during inspiration. The most likely cause of these findings is trauma to which of the following structures on the left?
A 22-year-old woman at 33 weeks' gestation has abdominal pain and vaginal bleeding after sustaining blunt trauma to the abdomen. Heart rate is 125 bpm, blood pressure is 98/65 mmHg, and respiratory rate is 20/min. Fetal heart rate is 100 bpm. Which of the following is the most appropriate management?
(A) Conservative observation and monitoring if fetal immaturity is seen on ultrasound
(B) Increasing maternal blood pressure with a vasopressor
(C) Infusion of terbutaline
(D) Lumbar epidural anesthesia
(E) Urgent cesarean delivery
E
A normal adult is receiving general anesthesia via a standard circle system and controlled ventilation. Mass spectrometer data are shown. Which event is most compatible with these data?
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
A 35-year-old woman with severe myasthenia gravis is scheduled for thymectomy. Which of the following preoperative pulmonary function tests is most likely to be normal?