Autoimmune / Rheumatology
Also known as: Immunoglobulin A, IgA
Contact your clinician if you experience frequent or severe infections, unexplained chronic diarrhea, or any new or worsening symptoms. These could indicate a significant immune system issue that needs prompt medical attention.
This test checks how much IgA is in your blood. IgA is a special protein. It helps your body fight off germs. It is very important for protecting areas like your nose, throat, lungs, and stomach.
Doctors often order this test to check how well your body fights off sickness. They might order it if you get sick a lot or have ongoing tummy troubles. This test helps them see if you have too much or too little IgA. This can show if you have certain health problems.
Reference ranges for IgA can vary significantly between different laboratories. Interpretation of results may also depend on your age, sex, and overall clinical context.
Clinical Reference
175932200080307Medicare covers for therapeutic drug monitoring
Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.