May assist in confirming suspected Trench fever in patient with typical signs and symptoms and compatible exposure history.
Semi-Quantitative Indirect Fluorescent Antibody
Serum separator tube.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as acute or convalescent.
Contaminated, hemolyzed, or severely lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
< 1:64 Negative - No significant level of Bartonella quintana IgG antibody detected.
1:64-1:128 Equivocal - Questionable presence of Bartonella quintana IgG antibody detected. Repeat testing in 10-14 days may be helpful.
≥1:256 Positive - Presence of IgG antibody to Bartonella quintana detected, suggestive of current or past infection.
A low positive result suggests past exposure or infection, while a high positive result may indicate recent or current infection, but is inconclusive for diagnosis. Seroconversion between acute and convalescent sera is considered strong evidence of recent infection. The best evidence for infection is a significant change on two appropriately timed specimens where both tests are done in the same laboratory at the same time.
Analyte Specific Reagent (ASR)
|Component Test Code*||Component Chart Name||LOINC|
|0050094||Bartonella quintana Antibody, IgG||9360-9|
- B. quintana IgG
- Bartonella quintana IgG