CC is a previously healthy 27-year-old man admitted to the critical care unit after an accident in which he was hit by a car and dragged along the pavement for nearly 100 feet. He suffered a frontal contusion, fractured clavicle and ribs, and extensive abrasions on his arms, legs, side, back, and buttocks. On admission, he was tachycardic, hypotensive, unresponsive, and ventilating poorly. He was placed on a mechanical ventilator and given IV fluids for the treatment of his shock. CC responded well to fluids, with an increase in blood pressure and an improvement in urine output.