From skin prick and blood testing to oral food challenges, allergists have several options for diagnosing an allergy. The rise in food allergies over recent years means that these allergy testing options are more important than ever. If you experience symptoms after eating peanuts, tree nuts, shellfish, eggs or other foods, visiting your Atlanta allergist for a diagnosis is essential. But what exactly is the most accurate food allergy test available to you?
Which Food Allergy Test Provides the Most Accurate Results?
The food allergy testing methods we use are known for being very reliable; however, a false positive or negative could at times occur. However, with expert interpretation from your allergist, each of the following testing solutions could help identify a food allergy.
Oral Food Challenge
An oral food challenge is often considered to be the pinnacle of food allergy testing methods. Under medical supervision a patient consumes small amounts of the suspected allergen, and is closely monitored for reactions. This gradual process allows an allergist to monitor how a person responds to specific quantities of a food or food type in a controlled setting. Consequently, the test usually takes several hours. Expect the results from a food challenge to be highly accurate.
Skin Prick Test
Skin prick testing is another accurate tool for diagnosing a food allergy. During the test, various allergens are placed on the forearm and back. The skin is then pricked and the patient is observed for food allergy symptoms, such as a raised red bump. Skin prick testing is the most common type of food allergy test as it provides accurate results for many allergens in as little as 15–30 minutes.
Blood Test
Blood testing is often used when a skin prick test is not possible due to potential interference from medications. For this test, a blood sample is taken and sent to a laboratory for analysis. This testing approach measures the antibodies the immune system produces in response to certain foods. Blood testing can also verify the results from other tests if the allergist wants further confirmation.
How Allergists Diagnose Food Allergies
Each of these three testing options is accurate when combined with a physical examination conducted by an experienced allergist, accompanied by a thorough analysis of the patient’s medical history. To confirm the test results the allergist will consider factors such as the patient’s age, dietary habits, symptom patterns, family history and environment.
Combining these factors (and even multiple tests) ensures an accurate diagnosis. And with a comprehensive diagnosis, your allergist can provide a food allergy treatment plan that offers lasting relief from food allergies.
Visit Us for Food Allergy Testing Services in Atlanta
If you are experiencing the symptoms of a food allergy, visit Chacko Allergy, Asthma and Sinus Center for comprehensive allergy testing services. We are conveniently located in Alpharetta, Atlanta, Canton, Cumming, Druid Hills, Duluth and Johns Creek. Call (678) 668-4688 or request an appointment now.
