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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.
2 passages
Panel A) Babesia microti [1] . This thin peripheral blood smear (Giemsa stain; x1000) shows Babesia microti. Several erythrocytes contain multiple parasites, including a diagnostic tetrad form (arrow).
Panel C) Normal [2] . High power view of a normal peripheral blood smear. Several platelets (black arrows) and a normal lymphocyte (blue arrow) can also be seen. The red cells are of relatively uniform size and shape. The diameter of the normal red cell should approximate that of the nucleus of the small lymphocyte; central pallor (red arrow) should equal one-third of its diameter. Courtesy of: 1. Harriet Provine 2. Carola von Kapff, SH (ASCP).