Allergy / Immunology
Also known as: IgA
Contact your doctor immediately if you experience frequent or severe infections, unexplained weight loss, severe allergic reactions, or new, unusual symptoms.
This test checks how much IgA is in your blood. IgA is a protein. Your body's defense system makes it. It helps protect you from germs and bad stuff. It works especially in wet areas like your nose, lungs, and stomach.
Your doctor might order this test to find out why you get sick often. It can help check for problems with your body's defense system. This test also looks for conditions where IgA levels are too high or too low.
Reference ranges for IgA can vary significantly depending on the laboratory, your age, and other individual factors. Your doctor will interpret your results based on these considerations and your overall health.
Clinical Reference
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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.