Chlamydia psittaci IgG antibody (serum/plasma) – Immunoassay
This test measures antibodies in your blood that your immune system produces to fight *Chlamydia psittaci*, a bacterium linked to certain respiratory infections, including psittacosis (a disease spread by birds).
["This test helps detect past or current exposure to the bacterium that may cause illness."]
Key facts at a glance
- LOINC
- 43057-9
- Short code
- C psittaci IgM Titr CSF
- Synonyms
- C psittaci IgM Titr CSF
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82784
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like fever, cough, or breathing difficulties—especially if you’ve been exposed to birds, have traveled to areas with known outbreaks, or have a history of respiratory infections. They may also order it for people with chronic lung conditions or those investigating unexplained fevers.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. If you’re pregnant, breastfeeding, or have a bleeding disorder, let your provider know before the test.
What the Results Mean
Positive results suggest your body has recognized *Chlamydia psittaci* antibodies, possibly indicating past infection. Negative results mean no detectable antibodies were found at this time. Results alone don’t confirm active infection—your provider will consider symptoms, exposure history, and other tests.
How the Test Works
This test uses an immunoassay (a lab method that detects specific antibodies) to measure IgG antibodies in your serum or plasma. The sample is analyzed to identify the presence of these antibodies, which develop after your immune system has encountered the bacterium.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Elevated IgG levels may indicate past infection or exposure to *Chlamydia psittaci*, which can cause respiratory illness (e.g., psittacosis). While IgG alone doesn’t confirm active infection, it can guide further testing or monitoring. In some cases, IgM antibodies (not measured here) may be checked for recent infection. Always discuss results with your provider, as interpretation depends on clinical context.
Short name
Chlamydia psittaci IgG Antibody
Frequently asked questions
How long does it take to get results?
Can I have this test if I’m currently sick?
What if my results are positive?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy