EM@3AM: Malaria
A 42-year-old male presents with headache, fever, chills, nausea, and myalgias. He returned from a month-long trip to Africa several weeks ago. On examination, he is tachycardic and febrile. You do not find a rash or meningismus, but you palpate an enlarged spleen and liver. What is your next step in evaluation and management?