Psittacosis laboratory tests
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Psittacosis Microchapters |
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Diagnosis |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]
Overview
Exposure history is paramout to diagnosis. Bloodwork shows leukopenia, thrombocytopenia and moderately elevated liver enzymes.
Laboratory Findings
Electrolyte and Biomarker Studies
- Leukocytosis
- Rise in ESR
- Rise in CRP
- Liver enzymes elevated
- Hyponatremia may be noticed
- Rise in blood urea levels
- Urinalysis may show proteinuria
Chest X Ray
- Lobar consolidation may be seen
- Infilterates may be evidenced
Diagnosis involves microbiological cultures from respiratory secretions of patients or serologically with a fourfold or greater increase in antibody titers against C. psittaci in blood samples combined with the probable course of the disease. Typical inclusions called Leventhal -Colle-Lillie bodies can be seen within macrophages in BAL fluid. Culture of Chlamydia psittaci is hazardous and should only be carried out in biosafety laboratories.