For this test a blood sample taken in your doctor s office is sent to a medical laboratory where different foods can be tested.
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Allergy blood testing is very specific for example the test for an egg white allergy is different than the one for an egg yolk allergy so your doctor may perform numerous tests on your blood.
A blood test can measure your immune system s response to particular foods by measuring the allergy related antibody known as immunoglobulin e ige.
The allergen specific ige antibody test is a blood test used to help diagnose an allergy to a specific substance or substances for a person who presents with acute or chronic allergy like symptoms.
Ige short for immunoglobulin e is the antibody that triggers food allergy symptoms in the past these tests were called rasts which stands for radioallergosorbent tests because they used radioactivity but modern tests do not.
Detect possible allergic responses to various foods see test includes and evaluate for hay fever asthma atopic eczema and respiratory allergy.
This is especially true if symptoms are recurrent and appear to be tied to triggers such as exposures to particular foods or environments and if.