10 Random Questions


A 15-kg, 3-year-old child is anesthetized for an inguinal hernia repair with halothane and nitrous oxide. The trachea is intubated after administration of succinylcholine 30 mg. At the conclusion of the 45-minute procedure, the child is not breathing; a peripheral nerve twitch monitor indicates no response to a train-of-four stimulus. Further investigation is most likely to show

ADVANCED Pharmacology & Pharmacokinetics Pediatric

The muscular action most likely to remain intact following an axillary brachial plexus block is

ADVANCED Regional & Pain

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

ADVANCED OB Regional & Pain

Diffuse microvascular bleeding is noted in a patient who has received 25 units of whole blood for a liver resection. Platelet count is 40,000/mm3, prothrombin time is 18 sec, activated partial thromboplastin time is 54 sec, and serum fibrinogen concentration is 60 mg/dl. The most likely cause of the bleeding is

BASIC Transfusions & Fluids

A 64-year-old, 87-kg woman in good general health is undergoing a right knee arthroplasty while in the supine position with general anesthesia consisting of enflurane 2% and nitrous oxide 50% in oxygen. She is breathing spontaneously through a 7-mm endotracheal tube. During the first 30 minutes of the procedure, the arterial oxygen saturation measured by pulse oximetry decreases from 98% to 92%. The most likely cause of the desaturation is

BASIC Respiratory & Critical Care General

Which of the following provides the earliest indication of myocardial ischemia during general anesthesia?


Which of the following pre-existing conditions predisposes to new-onset third-degree heart block during pulmonary artery catheterization?

ADVANCED General Cardiac

A patient is scheduled for amputation of the third metatarsal. A tourniquet will not be used during the procedure. The most effective anesthesia will be provided by block of which of the following nerves?

ADVANCED Regional & Pain

In which of the following clinical circumstances does down-regulation of beta-adrenergic receptors occur?


A 33-year-old primigravid woman with myasthenia gravis, well-controlled with pyridostigmine, is in labor with the cervix dilated 7 cm. She has a headache and feels very nervous. Blood pressure is 160/115 mmHg, she has 3+ pitting edema, and urinalysis shows 4+ protein. Appropriate management of her labor should include

ADVANCED OB