10 Random Questions


A 60-year-old man with type II diabetes mellitus requires emergency incision and drainage of a perirectal abscess. Laboratory studies show a serum glucose concentration of 850 mg/dl and a pHa of 7.30. The most appropriate management is administration of regular insulin and which of the following infusions?


During postoperative indirect laryngoscopy, the vocal cords appear symmetric during quiet breathing and approximate to the left of midline during phonation. The most likely cause is

ADVANCED Regional & Pain

During total cardiopulmonary bypass, metabolic acidosis and decreasing mixed venous oxygen saturation are noted. The most likely cause is

ADVANCED Cardiac

A 40-year-old woman is undergoing a posterior fossa craniotomy in the sitting position for clipping of a basilar artery aneurysm. Nitroprusside is being used to maintain mean arterial pressure at 50 mmHg, measured at head level. During dissection, over the course of one minute, the mean blood pressure decreases to 30 mmHg. Simultaneously, end-tidal carbon dioxide and pulmonary artery pressures decrease and heart rate increases. The most likely cause of these changes is


Which of the following statements concerning use of temperature-corrected blood gas measurement (pH-stat) during hypothermic cardiopulmonary bypass is true?

ADVANCED Cardiac

Which of the following statements concerning flumazenil is true?

BASIC Pharmacology & Pharmacokinetics

In patients homozygous for atypical pseudocholinesterase, which of the following best explains the prolonged action of succinylcholine?


Desflurane is delivered using a vaporizer that contains internal heaters because

BASIC Equipment & Physics Pharmacology & Pharmacokinetics

An anesthetized patient in the sitting position has a mean arterial pressure of 80 mmHg measured with a transducer placed at the level of the heart. Mean cerebral arterial pressure 20 cm above the transducer is


Following protamine administration, profound pulmonary hypertension is most likely initiated by release of

ADVANCED Pharmacology & Pharmacokinetics Cardiac