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What types of allergy tests exist?
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Allergy Blood Test

A blood test is a quick and simple way to get answers to your underlying allergy questions. Also called a specific IgE (sIgE) blood test, this powerful tool can aid in accurately diagnosing your allergies by measuring the level of specific antibodies in the blood. These antibodies are an indicator of allergic sensitization and can help your healthcare provider determine if you are allergic and to what.

Skin-Prick Allergy Test

In a skin-prick test (SPT), your skin is directly exposed to suspected allergens and observed for signs of a reaction. Although SPT can be done at a young age, repeated scratching or pricking can be traumatic for small children. SPT can be difficult to use in the presence of a condition like eczema, if you are actively taking an antihistamine, or if you have darker skin, which may make it hard to read the results.

Food Allergy Challenge Test

A challenge test, in connection with a blood test or SPT, is a powerful diagnostic tool. Also called an oral food challenge (OFC), it is used to establish a correct diagnosis, which can be guided by the results from an SPT or blood test. A challenge test can be used to confirm a food allergy or to determine whether you have outgrown a food allergy. 

Provocation Test

A provocation test is very similar to a challenge test. The main difference is that this type of test is usually used to test for suspected respiratory, medication, or occupational allergy, not typically for food. Therefore, it can be performed in the nose, eyes, or lungs, as well as the mouth.

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