Young man who has been camping for 3 weeks who presents with encephalopathy, fever/chills, headache and maculopapular rash involving the palms and soles along with petechiae/purpura of the lower extremities, concerning for RMSF
Key idea: RMSF (along with many other tick-borne illnesses such as Ehrlichiosis, Anaplasmosis, etc.) leads to leukopenia and thrombocytopenia
Key idea: Infectious rash over the palms and soles can be remembered with mnemonic CaRS: Coxsackie A, Rickettsia Rickettsii, Syphilis
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