Giardia lamblia Antigen in Stool (Qualitative)

Why This Test Matters

Giardia is a common parasite that can cause symptoms like stomach cramps, diarrhea, bloating, nausea, and gas. It’s often spread through contaminated water sources, especially in areas with poor sanitation. This test helps determine if you have an infection caused by Giardia, which can be treated with medication.

What to Expect Before the Test

No special preparation is needed for this test. You’ll provide a sample of your stool in a container provided by your healthcare provider. This is a simple, non-invasive procedure that can be done at home or in a lab setting.

How the Test Works

The test detects specific antigens (proteins) produced by Giardia lamblia in your stool. These antigens are identified using an immunoassay method, which is a highly sensitive test that can quickly determine if the parasite is present.

What the Results Mean

A positive result means Giardia lamblia antigens were found in your stool, suggesting an active infection. A negative result means the test did not detect these antigens, but it’s possible the infection is not active at the time of testing or the sample was not collected correctly. Follow-up testing or additional samples may be needed if symptoms persist.