10 Random Questions


A 7-year-old, obese, 30-kg boy was anesthetized using an adult circle system containing a 3-liter bag and mask. Induction with nitrous oxide (2 liters), oxygen (1 liter), and enflurane 3% was characterized by three minutes of hyperventilation followed by apnea. Forty-five seconds later, the child moved and became difficult to control. The most likely cause of the movement is

ADVANCED Pediatric

A 62-year-old woman with obesity and type II diabetes mellitus is scheduled to undergo vitrectomy of the right eye. Five minutes after retrobulbar injection with 0.75% bupivacaine 4 ml and intravenous administration of fentanyl 50 ju-g and midazolam 1 mg, she is apneic and unresponsive. Which of the following is the most likely cause?


Each of the following is a complication of stellate ganglion block EXCEPT

ADVANCED Regional & Pain

The rate of induction with inhalational agents is more rapid in neonates than adults because of a relatively increased

ADVANCED Pediatric

Which of the following statements concerning diazepam is true?

BASIC Pharmacology & Pharmacokinetics

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


Which of the following best describes the relationship between cerebral perfusion pressure and cerebral blood flow in a patient with untreated chronic hypertension?

BASIC Neuro

Which of the following is the most appropriate treatment of methemoglobinemia prior to emergency surgery?

BASIC General

During a cardiac arrest with effective chest compression and positive-pressure ventilation, 50 mEq of sodium bicarbonate is administered. Which of the following is the most likely result?

BASIC Respiratory & Critical Care General

Which of the following findings on the left is most likely to be associated with an increased risk of complications with cannulation of the left internal jugular vein compared with cannulation of the right internal jugular vein?

BASIC General