Skip to content

Chlamydia psittaci Antibody, Serum (IgG and IgM Titers)

Published: August 9, 2026Updated: August 16, 2026

This blood test checks for antibodies to *Chlamydia psittaci*, a bacterium that can cause respiratory infections like pneumonia. Antibodies indicate past or possible exposure.

Quick summary

["This test helps diagnose infections linked to psittacosis, a rare but serious illness often spread by birds or contaminated dust."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
104366-0
Short code
C psittaci Ab sp1 Titr Ser IA
Synonyms
C psittaci Ab sp1 Titr Ser IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may order this test if you have symptoms like fever, cough, or breathing difficulties—especially if you’ve been near birds, handled bird droppings, or lived in an area with known bird infestations. It’s also used in outbreaks or when investigating unexplained respiratory infections.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test looks for two types of antibodies (IgG and IgM) that your immune system produces in response to *Chlamydia psittaci*.

What the Results Mean

Positive results suggest past or recent exposure to the bacterium. IgG antibodies typically appear first and last longer, while IgM antibodies appear shortly after infection. High titers (concentrations) may indicate active infection.

Possible Side Effects

Minor side effects like bruising, soreness, or a slight pinch at the injection site are common. Rarely, more serious reactions (e.g., allergic response) may occur.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Chlamydia psittaci Antibody Test

Frequently asked questions

What does a positive result mean?
A positive result means your body has detected antibodies to *Chlamydia psittaci*, which could indicate exposure. This doesn’t always mean you’re currently sick, but it may prompt further testing or treatment if symptoms are present. Consult your doctor for interpretation.
How soon will I get results?
Results are usually available within 3–5 business days. Your doctor will discuss them with you during a follow-up visit.
Can I get this test at home?
No, this test requires a blood sample collected by a healthcare professional in a lab setting.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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