Psittacosis laboratory tests: Difference between revisions
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* Macroscopically they have patchy consolidation. | * Macroscopically they have patchy consolidation. | ||
* Microscopically exudation and interstitial changes are seen. | * Microscopically exudation and interstitial changes are seen. | ||
* They are best seen with Giemsa stain. | * They are best seen with Giemsa stain as inclusions called '''Leventhal -Colle-Lillie bodies''' and can be seen within macrophages in BAL fluid. | ||
===Culture=== | ===Culture=== | ||
Revision as of 19:03, 7 August 2012
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Psittacosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Psittacosis laboratory tests On the Web |
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American Roentgen Ray Society Images of Psittacosis laboratory tests |
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Risk calculators and risk factors for Psittacosis laboratory tests |
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
- Infiltrates may be evidenced
CT Scan
- On high resolution CT , infiltrates may be nodular and surrounded by ground glass opacity.[1]
Biopsy
- Macroscopically they have patchy consolidation.
- Microscopically exudation and interstitial changes are seen.
- They are best seen with Giemsa stain as inclusions called Leventhal -Colle-Lillie bodies and can be seen within macrophages in BAL fluid.
Culture
- Microbiological cultures from respiratory secretions.
- It is tedious process and seldom done .
Serology
- A fourfold or greater increase in antibody titers are against the diagnosis of C. psittaci in blood samples combined with the probable course of the disease.
Culture of Chlamydia psittaci is hazardous and should only be carried out in biosafety laboratories.