Chlamydia Antibody Panel, IgG & IgM by IFA

Casandra

Casandra Test Code AR19529Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 0065100CPT Codes 86631, 86632

Chlamydia Antibody Panel, IgG & IgM by IFA

Also known as: V CHLM PAN

Clinical Use

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Use

This test is used to differentiate between Chlamydophila species (C. psittaci, C. pneumoniae) and to differentiate early IgM response to infection from persistent low-level titer. It is particularly useful for understanding serological responses and identifying past exposures. However, due to cross-reactivity, results need careful interpretation, especially as a C. pneumoniae-specific reaction may exhibit titers two-fold or greater compared to C. trachomatis or C. psittaci serology. This test has limited value in diagnosing most oculogenital chlamydial infections.

Special Instructions

Parallel testing is preferred, and convalescent specimens must be received within 30 days from receipt of acute specimens. Mark specimens plainly as 'acute' or 'convalescent.'

Limitations

Because of cross-reactivity, interpretation of results must consider potential serological overlaps between different Chlamydophila species. A specific reaction for C. pneumoniae could result in higher titer levels than those observed with other serological types like C. trachomatis or C. psittaci. The test is not FDA approved and does not include LGV strains of C. trachomatis, which limits its application to generalized Chlamydia detection rather than specific strain identification.

Test Details

New York Approved