How Do Allergy Tests Work?


las vegas allergist If you think you are reacting to a substance, whether it’s pollen, food, or pet fur, you’ll want to get an allergy test to determine the cause. Pinpointing your allergies can reduce your exposure in the future and make it easier to manage your symptoms. There are two types of allergy tests available, which are a skin test and a blood test. Both can help identify your allergies.

How do Allergy Tests Work?

Blood tests and skin tests for allergies are used to determine the presence of an allergy antibody (called an IgE) for a particular allergen. For a skin test, a Las Vegas allergist applies a small amount of a substance to your skin. If your skin reacts upon exposure, you have an allergy to the substance. An allergist may also apply several different substances to your skin to find the substance you’re allergic to if you are not sure what is causing your symptoms. Alternatively, your allergist may order a blood test to check for allergies.

The Pros and Cons of a Skin Test

A skin test for allergies is the most common method to check for allergies. A skin test allows your doctor to check for more allergens, and you will get the test results back sooner. Right after testing, your doctor can start creating a treatment plan if you have allergies.

However, there are some limitations to skin tests, too. A skin condition or rash may interfere with the test results. Additionally, the medications that you take may affect the test results as well.

The Pros and Cons of a Blood Test

Blood tests are often used for potentially severe allergic reactions when a skin test would be too risky. Another advantage of blood tests is that there are fewer factors that can skew the test results. Blood tests are a good alternative for patients on medications that would otherwise affect the skin test results. Blood tests are also a top choice for people who have skin conditions or active rashes on their skin.

As with skin tests for allergies, there can be some downsides to blood tests, too. Blood tests are not as sensitive as skin tests, making it more difficult to pinpoint your precise allergen. While you’ll get the results from a skin test right away, it can take longer to get results back from a blood test. Blood tests for allergies are also more expensive. But if you’re wondering “where can I find an allergist near me that accept Medicaid,” you have come to the right place, as Dr. Tottori can assist.

Living with undiagnosed allergies ranges from frustrating to frightening. If you’re ready to determine the cause of your allergies, contact Dr. Tottori, a reputable Las Vegas allergist and asthma specialist, to make an appointment online or by calling (702) 240 4233.