Chlamydia psittaci IgG Antibody (Serum/Plasma)

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like fever, cough, or difficulty breathing—especially if you’ve been around birds, handled bird droppings, or worked in settings where birds are present (e.g., farms, pet stores). It may also be used to investigate unexplained respiratory infections or as part of a broader evaluation for exposure risk.

What to Expect Before the Test

No special preparation is needed. A blood sample will be drawn from a vein in your arm by a healthcare professional. You may feel a brief pinch, but the procedure is quick. If you’re taking blood thinners or have a history of bleeding disorders, let your provider know beforehand.

What the Test Results Mean

Positive results (detecting IgG antibodies) suggest past exposure or infection, but they don’t confirm an active illness. Negative results mean no detectable antibodies were found in this sample. Results alone don’t diagnose current illness—symptoms and clinical context are also considered.

Common Causes of Positive Results

A positive IgG test could be due to past infection, exposure to infected birds, or cross-reacting antibodies from other infections. It’s important to note that IgG alone doesn’t distinguish between recent and old exposure. If symptoms persist, further testing or evaluation may be needed.