Immunoglobulin A Test (IgA Test)

The Immunoglobulin A (IgA) test is a blood test used to measure the levels of IgA in the blood. IgA is a type of antibody that helps to protect the body against infections, particularly those that affect the respiratory and digestive systems. The test is used to help diagnose certain conditions such as infections, autoimmune disorders, and certain types of cancer.

During the test, a healthcare provider will draw a blood sample from a vein in the arm using a needle. The blood sample is then sent to a laboratory for analysis. In some cases, a healthcare provider may also collect a sample of mucus or other bodily fluids to measure the levels of IgA.

The IgA test is a safe and simple procedure that typically does not require any special preparation. However, it is important to let your healthcare provider know about any medications, supplements, or medical conditions you may have before the test.