When an allergy test comes back high, it means that the results indicate a high level of sensitivity to the substance tested. This means that the person tested is likely to experience an allergic reaction when exposed to the substance. Allergy tests usually measure the level of IgE (Immunoglobulin E) antibodies in the blood. IgE antibodies are produced by the body in response to an allergen, such as pollen or dust. The higher the level of IgE antibodies, the more sensitive the person is to the allergen.
Types of Allergy Tests
There are several types of allergy tests available, including skin prick tests, patch tests, and blood tests. Skin prick tests involve placing a small amount of an allergen on the skin and pricking the skin with a needle. Patch tests involve placing a patch containing an allergen on the skin for a period of time. Blood tests measure the level of IgE antibodies in the blood. Depending on the type of allergy test used, the results can vary from low to high.
Symptoms of an Allergy
The symptoms of an allergy vary depending on the allergen and the severity of the reaction. Common symptoms include itching, hives, redness, swelling, and wheezing. In more severe cases, anaphylaxis may occur which can be life-threatening.
Treating Allergies
The best way to treat an allergy is to identify and avoid the allergen. In some cases, medications such as antihistamines and corticosteroids may be used to treat the symptoms of an allergy. In severe cases, an allergy shot or immunotherapy may be recommended.