Individual test · Labcorp 602554

Casein

This test measures the level of specific antibodies in your blood that react to casein, the main protein found in cow’s milk. It helps show whether your immune system treats this milk protein as harmful, which can cause symptoms like hives, stomach pain, or breathing problems. This measurement helps doctors distinguish a potential milk allergy from other digestive issues, such as lactose intolerance. However, a positive result indicates sensitization and does not predict exactly how severe a future allergic reaction might be.