10 Random Questions


Each of the following statements concerning the activated clotting time (ACT) is true EXCEPT:

ADVANCED General Cardiac

A 22-year-old woman at 33 weeks' gestation has abdominal pain and vaginal bleeding after sustaining blunt trauma to the abdomen. Heart rate is 125 bpm, blood pressure is 98/65 mmHg, and respiratory rate is 20/min. Fetal heart rate is 100 bpm. Which of the following is the most appropriate management?


A 30-year-old man is brought to the emergency department after being rescued from a house fire. With the trachea intubated and FiO2 at 1.0, arterial blood gas values are PaO2 495 mmHg, PaCO2 28 mmHg, and pH 7.28. Hemoglobin saturation measured by co-oximeter is 50%. The most appropriate next step is to

ADVANCED General

A patient with low cardiac output following coronary artery bypass grafting is transferred to the intensive care unit where a chest roentgenogram confirms proper placement of the pulmonary artery catheter. Serial pulmonary artery occlusion pressures are then measured. Immediately following inflation of the balloon with 1.5 ml of air in the wedged position, brisk bleeding is noted from the endotracheal tube. The most appropriate immediate management is to


In a patient with ventricular fibrillation refractory to repeated attempts at defibrillation and epinephrine administration, the most appropriate management is administration of

BASIC General Cardiac

Which of the following interventions is most effective in preventing neurologic injury resulting from global cerebral ischemia?

ADVANCED Neuro

A 50-year-old patient undergoes subtotal thyroidectomy for Graves' disease. In the immediate postoperative period, he has marked hoarseness but no stridor. The most likely cause of the hoarseness is trauma to the

ADVANCED General

A 29-year-old man who has been nasotracheally intubated for two weeks following a motor vehicle accident has a fever (39C) and a constant headache. Leukocyte count is 18,000/mm3. The most likely cause is

ADVANCED Respiratory & Critical Care

Evaluation of a postoperative neurologic deficit discloses inability to oppose the thumb and little finger, weakness of abduction of the thumb, and loss of flexion of the distal phalanx of the index finger. This problem is most likely related to


Which of the following attenuates the most common cardiovascular side effect of protamine administration?