What Is an Allergy Blood Test and Why Is It Done

What Is an Allergy Blood Test and Why Is It Done - Near Me

An Allergy Blood Test helps detect allergic reactions by measuring Immunoglobulin E (IgE) antibodies in your blood. These antibodies are produced by the immune system when exposed to allergens like dust, pollen, certain foods, or animal dander. The test is often recommended for people with chronic symptoms like sneezing, itching, rashes, or breathing issues.

How an Allergy Blood Test Works

The procedure is simple—a small blood sample is drawn and sent to a lab, where it’s analyzed for reactions to specific allergens. The results indicate whether you have a mild, moderate, or severe allergic response to substances, helping doctors plan appropriate treatment.

Types of Allergy Tests and What They Reveal

There are two main types: total IgE tests, which measure the overall allergic response, and specific IgE tests, which identify reactions to individual allergens like peanuts or pet hair. These tests can help narrow down the cause of allergic symptoms when it's unclear.

When Should You Consider an Allergy Blood Test?

This test is ideal if you can’t stop antihistamines for skin tests, have sensitive skin, or want a broader picture of your allergic profile. It’s also safe for children and people with skin conditions, making it a versatile tool in allergy diagnostics.

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