How are allergies diagnosed?
-
Allergies are diagnosed in a number of ways. In some cases, a doctor may identify an allergy simply based on your recent history-for example, you always sneeze when the pollen count is high, or you always get a rash after eating a certain food. In other cases, a doctor may use a skin test to determine specific allergies. The doctor will prick your skin with a diluted solution of an allergen to see if a reaction occurs. If a skin test can't be used, your doctor may try a radioallergosorbent test (RAST), which measures blood levels to see if the immune system is attempting to fight off a reaction.
Allergies are diagnosed in a number of ways. In some cases, a doctor may identify an allergy simply based on your recent history-for example, you always sneeze when the pollen count is high, or you always get a rash after eating a certain food. In... More -
Johns Hopkins Medicine answered:Allergies are diagnosed through allergy testing. You can expect the following if you go for allergy testing. Often, the results are available the same day.
- Clinical evaluation - a thorough evaluation is important, including complete medical and family history, as allergies tend to have a genetic component
- Allergy testing - this is done through skin testing in the office. A small amount of several allergens are tested on the patient's skin. Results are available 20 minutes after the test is placed. Individuals who are not candidates for skin testing can have blood tests for allergies.
- Endoscope - your doctor will carefully examine the inside of your nose to assess other possible conditions such as nasal polyps and sinusitis
Allergies are diagnosed through allergy testing. You can expect the following if you go for allergy testing. Often, the results are available the same day. Clinical evaluation - a thorough evaluation is important, including complete medical and... More -
NewYork-Presbyterian Hospital answered:Your allergist will perform a physical exam and ask you questions about your signs and symptoms. For food allergies, you may be asked to keep a food diary and start an elimination diet. In this diet, you are asked to stop eating foods for about two weeks and then reintroduce those foods one at a time to determine which food is the cause of your symptoms. For environmental allergies, your allergist may use skin tests to determine your body's response to allergens. The doctor will inject small amounts of solutions containing allergens into your skin. You will be asked to wait about 15 minutes to see if your skin becomes raised and red around any of the injections, which may mean that you are allergic to the allergen tested at that site.
Alternately, your allergist may use a blood test that measures your immune system's response to allergens.
Your allergist will perform a physical exam and ask you questions about your signs and symptoms. For food allergies, you may be asked to keep a food diary and start an elimination diet. In this diet, you are asked to stop eating foods for about... More -
Dr. Carlos Rios of The Mount Sinai Medical Center answered:Managing your allergies starts with an accurate diagnosis. In this WisePatient video, Carlos Rios, MD, an internist with The Mount Sinai Medical Center, describes how he uses a patient's history and, if needed, tests to diagnose an allergy.
Managing your allergies starts with an accurate diagnosis. In this WisePatient video, Carlos Rios, MD, an internist with The Mount Sinai Medical Center, describes how he uses a patient's history and, if needed, tests to diagnose an allergy. More
