Individual test · Labcorp 602723

Onion

This test measures the level of specific antibodies in your blood that react to proteins found in onions. It helps determine if your immune system views onion as a harmful invader, which is useful if you experience symptoms like hives, swelling, or digestive trouble after eating them. This testing helps distinguish a potential allergic reaction from other causes of food sensitivity. However, a positive result does not predict the severity of a future allergic reaction and should be interpreted alongside your medical history.