10 Random Questions


Left ventricular subendocardial perfusion pressure is best estimated by the difference between

BASIC General

A 62-year-old man, who had a myocardial infarction three years ago, complicated by congestive heart failure and renal failure, is undergoing a colectomy. A pulmonary artery catheter demonstrates a cardiac output higher than measurements recorded during a cardiac catheterization two months after the infarction. Which of the following most likely contributes to the increased cardiac output?

ADVANCED Cardiac

Which of the following statements concerning myasthenia gravis is true?

ADVANCED General

A 45-year-old man with chronic liver failure is scheduled for liver transplantation. Which of the following preoperative findings is most likely?

ADVANCED General

During rapid-sequence induction prior to an emergency surgical procedure, a 20-year-old patient vomits gastric contents containing particulate matter. An endotracheal tube is easily inserted and ventilation with pure oxygen is initiated. Despite the presence of bilateral breath sounds, SpO2 is 90%. Which of the following is the most appropriate next step?

BASIC Respiratory & Critical Care General

In a patient who is to undergo clipping of a cerebral aneurysm, an advantage of isoflurane over nitroprusside for induction of hypotension is

ADVANCED Pharmacology & Pharmacokinetics Neuro

Compared with blood anticoagulated with CPD, blood stored in CPDA-1 has

BASIC Transfusions & Fluids

A 66-year-old man with chronic obstructive pulmonary disease who underwent colectomy 12 hours ago has been receiving an epidural infusion of fentanyl at a rate of 100 mcg/hr. Which of the following is LEAST likely to develop?

BASIC Pharmacology & Pharmacokinetics

After termination of cardiopulmonary bypass, a patient who is chronically digitalized receives digoxin 0.5 mg in error. An ECG shows sinus bradycardia with intermittent sinus arrest; blood pressure is 90/60 mmHg. Which of the following drugs is contraiindicated in this patient?

ADVANCED Pharmacology & Pharmacokinetics Cardiac

A 45-year-old man is scheduled for appendectomy under general anesthesia. He reports that for many years he has occasionally felt his heart "skip a beat." The ECG tracing shown was obtained one hour ago. Which of the following is the most appropriate next step?

BASIC General Cardiac