Compared with the response of a normal patient, administration of a bolus dose of pancuronium (0.15 mg/kg) to a patient with cirrhosis and ascites would be associated with
(A) longer duration
(B) more rapid onset
(C) more intense block
(D) more difficult reversibility
(E) similar pharmacokinetics
A
A 32-year-old woman sustains an injury to the left recurrent laryngeal nerve during thyroidectomy, Which of the following is the most likely postoperative finding?
(A) Adduction of the left vocal cord at rest
(B) Aphonia
(C) Aspiration caused by glottic incompetency
(D) Impaired coughing
(E) Paralysis of the left cricothyroid muscle
A
The short clinical duration of action of a single dose of fentanyl is a result of its
Failure to block the musculocutaneous nerve adequately during the axillary approach to brachial plexus block will result in inadequate anesthesia of the
(A) thumb and index finger
(B) dorsum of the wrist
(C) lateral aspect of the forearm
(D) lateral aspect of the elbow
(E) medial aspect of the upper arm
C
Nitrous oxide is contraindicated during
(A) injection of sulfur hexafluoride for retinal tamponade
(B) repair of open eye injury
(C) scleral buckling with synthetic bands
(D) strabismus surgery
(E) trabeculectomy for glaucoma
A
Spontaneously breathing enflurane at 1 MAC causes increased
An 80-kg, 70-year-old woman is scheduled for a mastectomy. She has a history of congestive heart failure treated with digoxin 0.25 mg daily. Preoperative examination shows a sinus rhythm at 80 bpm and blood pressure of 110/70 mmHg. Laboratory studies show a serum potassium concentration of 4.2 mEq/L and a serum digoxin concentration of 1.5 mcg/ml. Five minutes after induction of general anesthesia, ventricular bigeminy is noted; blood pressure is 85/65 mmHg, SpO2 is 97%, and PetCO2, is 20 mmHg. Which of the following is the most appropriate management?