10 Random Questions


A 48-year-old woman with von Willebrand's disease is scheduled for a hysterectomy. The most appropriate initial preoperative therapy to decrease bleeding is administration of

BASIC Transfusions & Fluids General

Preoperative administration of an alpha-adrenergic blocker for 10 days to patients with pheochromocytoma will decrease

ADVANCED General

Two days after coronary artery bypass grafting, a 62-year-old man remains sedated, tracheally intubated, and mechanically ventilated with full neuromuscular block. Over the next three hours, Pa02 decreases from 90 to 70 mmHg at an Fl02 of 0.7, peak inspiratory pressure measured proximally in the ventilatory circuit increases from 40 to 66 cmH20, and plateau pressure remains unchanged at 30 cmH20. Which of the following is the most likely cause of these changes?


Each of the following increases arterial to end-tidal carbon dioxide tension difference EXCEPT

BASIC Respiratory & Critical Care

In patients with reflex sympathetic dystrophy affecting the arm, which of the following findings indicates a therapeutic block?

ADVANCED Regional & Pain

A healthy patient is receiving general endotracheal anesthesia with nitrous oxide 4 L/min, oxygen 2 L/min, and isoflurane 1% with spontaneous ventilation. The inspiratory breathing hose becomes disconnected from the inspiratory valve. The earliest alarm will be produced by

BASIC Equipment & Physics

Which of the following is the greatest disadvantage of pressure-cycled ventilation?

BASIC Equipment & Physics Respiratory & Critical Care

A 26-year-old woman has weakness on extension of the right knee one day after uneventful vaginal delivery under spinal anesthesia with lidocaine. The most likely cause is


A multi-orifices right heart catheter is being positioned by EKG control prior to sitting craniotomy. The EKG tracing is obtained between the distal tip of the catheter and the right arm lead. The most appropriate next step is to

ADVANCED Equipment & Physics Neuro

A 50-year-old man is scheduled to undergo emergency craniotomy for evacuation of an epidural hematoma. His Glasgow Coma Scale score is 6; heart rate is 54 bpm, and blood pressure is 190/110 mmHg. The most appropriate initial management is administration of which of the following agents?

ADVANCED Neuro