Toxicity screening for Giardia duodenalis (Giardia intestinalis) antibodies – Serum Immunoassay

What Does This Test Measure?

This test detects Giardia duodenalis antibodies in your serum using an immunoassay method. Antibodies are proteins your immune system produces in response to infection. If you have been exposed to Giardia, these antibodies may be present in your blood.

Your healthcare provider may recommend this test if you have symptoms like stomach pain, diarrhea, bloating, or nausea, especially after traveling to areas with poor sanitation or if you’ve been in close contact with someone who has Giardia.

Symptoms of Giardia infection can range from mild to severe and may include persistent diarrhea, weight loss, or abdominal discomfort. This test helps confirm if your symptoms are due to Giardia infection rather than another cause.

No special preparation is needed for this blood test. You may have a small needle inserted into your arm to draw blood, and you can resume normal activities afterward.

This test involves drawing a small amount of blood from your arm. The blood sample will be sent to a lab for analysis. Results can take several days to a week, depending on lab processing times.

Results are typically reported as either positive or negative for Giardia antibodies. A positive result suggests past or current exposure to Giardia, while a negative result means no detectable antibodies were found.

A positive result does not necessarily mean you are currently infected; it may indicate past exposure. If symptoms persist, further testing or evaluation may be needed to determine the cause.