Review Question - QID 214878

A 16-year-old male presents to the emergency department one day after injuring his ankle during a high school football game. The patient sustained a large abrasion over his lateral ankle after being tackled on a turf field. He reports progressive redness, swelling, and purple spots on his leg that have advanced over the last several hours. In the emergency room, his temperature is 102.8° F, his heart rate is 120 bpm, and his systolic blood pressure is 98 mmHg. On physical exam, he is ill-appearing and diaphoretic. The leg is erythematous, edematous, and several purple bullae are present. Which of the following is true regarding this condition?