Review Question - QID 108620

An 8-year-old girl is brought to the physician by her parents due to a new rash on her feet and legs. Her parents noticed the rash one day ago, and the child has also been complaining of joint pain and abdominal pain. She has no chronic medical conditions and has not been traveling or spending time outdoors recently. She had an upper respiratory infection seven days ago which resolved on its own. On exam, her vital signs are normal, and she is generally well-appearing. Her joints have full range of motion with no evidence of trauma. Her abdomen is soft and non-distended and is mildly tender to deep palpation diffusely. The patient has the notable findings in Figure A which are non-blanchable. The results of a complete blood count are within normal limits. Her urinalysis shows > 20 RBCs.
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