Bartonella quintana Antibody, IgG by IFA

Casandra

Casandra Test Code AR52963Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0050094CPT Code 86611

Bartonella quintana Antibody, IgG by IFA

Also known as: QUINT G

Clinical Use

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Use

The Bartonella quintana Antibody, IgG by IFA test is designed to assist in confirming suspected Trench fever in patients who exhibit typical signs and symptoms consistent with the disease, as well as a compatible exposure history. A low positive result suggests past exposure or infection, while a high positive result may indicate an active or recent infection. However, the test is not conclusive for diagnosis based solely on a positive result, hence seroconversion between acute and convalescent sera, which is considered strong evidence of recent infection, should be evaluated. The test helps in the assessment of the presence of Bartonella quintana IgG antibodies to suggest current or past infection.

Special Instructions

For optimal results, it is advised to submit both acute and convalescent specimens for seroconversion evaluation. Parallel testing is preferred and the convalescent specimens must be received within 30 days from the receipt of the acute specimens. Specimens should be clearly marked as acute or convalescent.

Limitations

Despite positive results, the test may not conclusively diagnose Bartonella quintana infection. Seroconversion between acute and convalescent sera is a stronger indicator of recent infection. Variability in antibody levels due to previous exposures may obscure interpretation. The test results should be considered alongside other serological and clinical evaluations. Environmental factors such as contamination or hemolysis can potentially affect results. Additionally, repeat IFA testing within a 10-14 day window may aid interpretation for equivocal findings.

Test Details

New York Approved