Serum IgE Testing

Serum IgE testing is a form of allergy testing that requires a blood draw. IgE is an antibody that your body’s immune system makes to allergens.

Serum IgE testing is used to evaluate for environmental allergies and food allergies. Antihistamines do not interfere with blood testing.

Your test results are best explained by an allergist, because an abnormal IgE level does not always indicate you have an allergy.