10 Random Questions


Which of the following statements about pulmonary function testing is true?

ADVANCED Respiratory & Critical Care

A 60-year-old man undergoing resection of an abdominal aortic aneurysm has an increase in measured mixed venous oxygen saturation from 70% to 90%. Which of the following is the most likely cause?


During active labor, 10 ml of bupivacaine 0.5% with epinephrine 1:200,000 is administered epidurally. Fifteen minutes later, maternal blood pressure is 70/50 mmHg and heart rate is 70 bpm; fetal heart rate is 90 bpm for 45 seconds, with loss of beat-to-beat variability. The most likely explanation for the fetal vital signs is

ADVANCED OB

To eliminate involuntary expulsive effort with contraction in the second stage of labor, a nerve block must include at least

ADVANCED OB Regional & Pain

Compared with a normal child, which of the following is expected during inhalation induction in a child with a 2:1 left-to-right intracardiac shunt?

ADVANCED General Pediatric

A patient receives 1.5% bupivacaine 40 ml and epinephrine 1:200,000 for axillary brachial plexus block for reduction of a forearm fracture. The tourniquet is inflated to 300 mmHg; 45 minutes later, the patient has pain that radiates to the posteromedial elbow. Which of the following nerves is NOT adequately blocked?

ADVANCED Regional & Pain

Which of the following will result in the largest change in oxygen content?

BASIC General

Phantom limb pain is an example of which of the following types of pain?


Arterial pressure in the radial artery is 155/70 mmHg measured by a correctly calibrated catheter-transducer system. At the same time aortic pressure is 140/75 mmHg using a high-fidelity catheter tip transducer. The most likely cause of this discrepancy is

BASIC Equipment & Physics

Spontaneously breathing enflurane at 1 MAC causes increased

BASIC Pharmacology & Pharmacokinetics