Chlamydia IgG, Immunofluorescence, Serum
Use
The test is useful for assessing IgG antibody levels to aid in the clinical diagnosis of Chlamydia pneumoniae or Chlamydia psittaci infections. These IgG antibodies provide evidence for both current and past infection, allowing healthcare providers to assess the presence of infections or previous exposure to these pathogens.
Special Instructions
For suspected Chlamydia trachomatis infection, other tests such as CTRNA and CGRNA for Nucleic Acid Amplification may be more appropriate. The test is New York State approved, and for accurate results, it is advised to follow specific specimen collection and handling instructions.
Limitations
The presence of antichlamydial IgG can persist for years and may not necessarily indicate a current infection. A second specimen collected 10 to 21 days later tested in parallel is recommended if current infection is suspected. Additionally, this test does not detect antibodies against Chlamydia trachomatis; a molecular method should be considered for those infections. There are risks of cross-reactivity with other Chlamydia species during the early antibody response.
New York Approved
Methodology
Immunoassay (Micro-Immunofluorescent Antibody (MIF) Assay)
Biomarkers
LOINC Codes
- 10848-0
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.3 mL
Minimum Volume
0.15 mL
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Storage Instructions
Refrigerated preferred, stable for 30 days.
Causes for Rejection
Gross hemolysis, gross lipemia, gross icterus, heat-inactivated specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 30 days |
| Frozen | 30 days |