A previously healthy 16-year-old boy is brought in by ambulance after colliding into a tree while snowboarding. He has severe pain in his left leg. Vitals are: temperature 99.0F, HR 90, RR 16, BP 135/85. A photograph of the patient’s chest is shown. Laboratory studies show:
Hb: 13.4 g/dL
WBC: 9,000/uL
Platelets: 80,000/uL
Bleeding time: 8 minutes
Prothrombin time:12 seconds
Partial thromboplastin time: 33 seconds
Which of the following is the most likely explanation for these findings?
Cryoglobulinemia
Disseminated intravascular coagulation
Embolic syndrome
Leukocytoclastic vasculitis
Lichen planus
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Cut-to-the-chase Answer (0:18):
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HY USMLE Answer (8:24):
