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Chlamydia Antibody Panel, IgG & IgM by IFA
Ordering Recommendation
Differentiate between Chlamydophila species (C. psittaci, C. pneumoniae). Differentiate early IgM response to infection from persistent low-level titer. Because of cross-reactivity, a C. pneumoniae-specific reaction will exhibit titers two-fold or greater than C. trachomatis or C. psittaci serology. Limited value in the diagnosis of most oculogenital (eg, eyes, genitalia) chlamydial infections.
Methodology
Semi-Quantitative Indirect Fluorescent Antibody (IFA)
Performed
Sun-Fri
Reported
1-4 days
New York DOH Approval Status
Specimen Required
Plain red or 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: 0.4 mL) 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."
Refrigerated.
Contaminated, hemolyzed, or hyperlipemic sera.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval
< 1:64 C. pneumoniae IgG.
< 1:64 C. psittaci IgG.
< 1:64 C. trachomatis IgG.
< 1:20 C. pneumoniae IgM.
< 1:20 C. psittaci IgM.
< 1:20 C. trachomatis IgM.
Interpretive Data
Refer to individual components.
Analyte Specific Reagent (ASR)
Note
Hotline History
Hotline History
CPT Codes
86631 x3; 86632 x3
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0065101 | C. pneumoniae IgM Titer | 6914-6 |
| 0065102 | C. trachomatis IgM Titer | 6920-3 |
| 0065103 | C. psittaci IgM Titer | 6917-9 |
| 0065104 | C. pneumoniae IgG Titer | 6913-8 |
| 0065106 | C. trachomatis IgG Titer | 6919-5 |
| 0065107 | C. psittaci IgG Titer | 6916-1 |
Aliases
- Chlamydia IgG, IgM Ab
- CT IgG, IgM Ab
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