
ALLERGY DIAGNOSTIC
Prick Test
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The prickelt is used to detect allergic immediate reactions (type I reactions) - z. B. pollen or insect venom allergies. Standardized allergen solutions are applied to the skin (usually on the inside of the forearm) and then introduced into the skin by means of a superficial stitch with a lancet.
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After about 15 minutes reactions can be read in the sense of wheal formation.
Patch Test (ECT, epicutaneous test)
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The epicutaneous test is used to diagnose so-called contact allergies (type IV reactions).
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On the back or forearm special main patches are stuck, which contain the test substances.
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The allergens are left on the skin for 24-48 hours, after which they are read.
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A second reading takes place 3-4d after the start of the test.
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Under certain circumstances, an additional reading after 4-8d may be useful.
IgE Antibody Test
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In Type I allergy, the body forms specific antibodies. These can be detected by different laboratory procedures in the blood.
Lymphocyte Transformation Test (LTT)
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LTT is used to complement the diagnosis of type IV allergic reaction.