Cat scratch fever laboratory tests

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]

• Complete blood count and differential count – lymphocytosis is seen in the acute phase.
• Erythrocyte sedimentation rate – elevated.
• Serological testing (indirect immunofluorescence or enzymatic immunoassay with titration of IgG or IgM antibodies) – to detect serum antibody to B henselae.
• Polymerase chain reaction (PCR) is the most sensitive test and is able to differentiate between different Bartonella species, as well as subspecies and strains.

Template:WH Template:WS