Which tests are typically used to check for allergens?

The use of enzyme-linked immunosorbent assay (ELISA) tests is a commonly accepted method for checking for allergens. ELISA tests work by detecting the presence of specific antibodies in the blood that are produced in response to allergens. When a person is exposed to an allergen, their immune system may produce immunoglobulin E (IgE) antibodies. The ELISA test captures these antibodies, allowing for the identification and quantification of specific allergens that may trigger allergic reactions. This highly sensitive and specific test is widely utilized in clinical settings for diagnosing allergies to foods, pollen, dust mites, and various environmental triggers.

In contrast, the other methods listed serve different purposes: radiation exposure tests measure exposure to radioactive substances, culturing bacteria tests focus on identifying bacterial infections rather than allergens, and blood pressure tests monitor cardiovascular health, unrelated to allergy detection. Thus, ELISA stands out as the appropriate test for allergen detection.