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Doctor insights on: Allergy Tests

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Dr. Paul Carter
170 doctors shared insights

Allergy Tests (Overview)

Allergies can be identified by allergy tests. The best allergy test is a skin test. It is safe and reliable. The next best allergy test is a blood test - less reliable than skin tests but also safe. If we are looking into food allergy then a challenge test is very reliable but it can be risky.


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Do allergy tests hurt?

Do allergy tests hurt?

Usually not: There are very small pricks and possibly small injections. If you hold still , it is ifairly painless. The tough part is itching with a positive test. ...Read more

Dr. Paul Carter
170 doctors shared insights

Allergy Tests (Overview)

Allergies can be identified by allergy tests. The best allergy test is a skin test. It is safe and reliable. The next best allergy test is a blood test - less reliable than skin tests but also safe. If we are looking into food allergy then a challenge test is very reliable but it can be risky.


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How accurate are allergy tests?

How accurate are allergy tests?

Depends: The results of the allergy skin test are interpreted in 20 minutes after they are placed, so you have that information right away. Allergy blood tests (specific ige) usually takes a few days or up to a week depending if the blood sample is processed in the lab or sent to a reference lab in a different city. ...Read more

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What method are allergy tests carried out?

What method are allergy tests carried out?

Skin test usually: Board certified allergists prefer skin testing although serum specific ige is also an option. Avoid igg tests as these are not helpful. For a quick read, see my blog at http://www.Familyallergyasthmacare.Com/2012/10/comfortable-allergy-skin-testing/. ...Read more

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How are allergy tests done? What is involved?

How are allergy tests done? What is involved?

Skin testing: Skin testing should only be done by a board certfied allergist...It usually takes 1-2 hours depending on how many tests are performed. It involves small scratches on you back or arm, called skin prick testing. The scratches are evaluated at 15 minutes for swelling/redness to determine allergic sensitization. ...Read more

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When are allergy tests indicated for a person?

When are  allergy tests indicated  for a person?

Allergy questions: Allergy tests are useful if you have questions about what you are allergic to and the answers will help improve your quality of life. They help guide avoidance measures and determine what immunotherapy options might be helpful in treating you. Sometimes, as with penicillin testing, they are most useful by telling us we don't have to avoid something any longer, we can add back things we feared. ...Read more

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How long after allergy tests do they start shots?

Up to you: Some people recognize that shots are the best way to treat their allergies, and know that the currently available medications don't work well for them - they want to start right away, such as a day or two after testing. Others want to try different medications, and might not decide to start the shots until they've been trying medications for a year or two and are frustrated that they don't work. ...Read more

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How are today's allergy tests performed on children?

How are today's allergy tests performed on children?

Skin or Blood: Depending on the clinical history and suspected allergen, some practitioners choose the less painful and timely method, which is a blood test looking for specific ige antibodies, also called rast testing. Percutaneous skin tests are still the gold standard for allergy testing. This is something which you should discuss with your physician. ...Read more

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How long after allergy tests do they start your shots?

1 week or so: Usually within a week or two one can start allergy vaccine therapy. It usually limited by how quickly the serum can be made, . ...Read more

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Dr. John Chiu
2,491 doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more