Which of the following has these clinical characteristics:…

Which of the following has these clinical characteristics: Painless, ulcerated lesion at site of inoculation. Maculopapular rash all over body, including palms of hands and soles of feet. Late stages cause neurological problems such as ataxia, stroke, and dementia.

A patient presents with fever, neurological alterations and…

A patient presents with fever, neurological alterations and petechiae of the lower extremities. Lab results include a decreased platelet count, elevated bilirubin, and hemolysis and schistocytes in the blood smear. The clinician should include which of the following as a priority differential diagnosis?

A pediatric patient presents in the primary care clinic with…

A pediatric patient presents in the primary care clinic with three day history of diarrhea after a hamburger cookout at the river. The patient is pale and lethargic. There are no obvious bruising, petechiae or easy bleeding. Urinalysis results include mild proteinuria and hematuria. Because of the patient’s history, a priority differential diagnosis should include: