10 Random Questions


Which of the following neurophysiologic monitoring modalities is LEAST affected by administration of volatile anesthetic agents?

BASIC Equipment & Physics

In a patient with aortic stenosis, myocardial ischemia following endotracheal intubation is most likely to result if there is an Increase in


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?


A 2-year-old child has cardiac arrest during an inguinal herniorrhaphy under general anesthesia administered during a Jackson-Rees system. The graph shows end-tidal PCO2 monitored from the tip of the endotracheal tube during cardiopulmonary resuscitation; minute ventilation is unchanged. Which of the following is the most likely cause of the change beginning at the arrow?

ADVANCED Equipment & Physics Pediatric

A healthy, spontaneously breathing, supine, anesthetized patient has a PaCO2 to PetCO2 difference of 3 mmHg. Following institution of mechanical ventilation the value increases to 12 mmHg. The most likely cause of this change is

BASIC Respiratory & Critical Care

Which of the following statements concerning the innervation of the larynx is true?

BASIC Regional & Pain

A 70-kg patient experiences pain on incision of a thigh abscess. The area around the abscess had been infiltrated with 30 ml of 1% lidocaine in 1:200,000 epinephrine. The local anesthetic was most likely ineffective because of

BASIC Pharmacology & Pharmacokinetics Regional & Pain

During cardiopulmonary bypass at a nasopharyngeal temperature of 28°C and a hematocrit of 20%, temperature-corrected PaCO2 is 50 mmHg and uncorrected PaCO2 is 60 mmHg. The most appropriate management is to

ADVANCED Cardiac

A direct 5-joule shock is unsuccessful in converting ventricular fibrillation occurring after discontinuation of cardiopulmonary bypass. The most appropriate next step is to


If both recurrent laryngeal nerves were severed during a difficult thyroidectomy for cancer, the most likely finding would be

ADVANCED Regional & Pain