A woman has weakness of the right quadriceps and a decreased knee jerk reflex on the right one day after forceps delivery under epidural anesthesia. The most likely cause is
(A) epidural hematoma
(B) intrapelvic nerve trauma
(C) lithotomy positioning
(D) reaction to the preservative in the anesthetic solution
A 55-year-old woman receiving chronic dialysis for renal failure comes to the emergency department with a perforated viscus. She has chest pain. Heart rate is 124 bpm, blood pressure is 90/60 mmHg, and respiratory rate is 18/min. Surgery is to be performed within the hour. Which of the following best describes this patient's ASA physical status classification?
(A) III
(B) III E
(C) IV
(D) IV E
(E) V E
D
The tracing shown is from a femoral artery catheter. Which of the following is the most likely explanation?
(A) An air bubble greater than 1 ml is in the tubing
(B) The diastolic pressures is factitiously high
(C) Mean blood pressure is inaccurate
(D) The monitoring system is underdamped
(E) Systolic pressure in the aortic arch exceeds 200 mmHg
A patient with moderate hypothyroidism and unstable angina requires urgent coronary artery bypass grafting. Which of the following is most appropriate before proceeding with the operation?
(A) Initiation of epinephrine infusion
(B) Intramuscular administration of a barbiturate
(C) Intravenous administration of triiodothyronine (T3)
A 58-year-old woman with rheumatoid arthritis and hyperactive gag reflex requires awake intubation prior to cervical spine stabilization. Which of the following regional nerve blocks is most appropriate?
During induction of anesthesia for cesarean delivery, pancuronium is inadvertently substituted for succinylcholine. The neonate shows no clinical signs of muscle relaxation because pancuronium is