ALLERGY DIAGNOSTIC

Prick Test

• 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.

• After about 15 minutes reactions can be read in the sense of wheal formation.

Patch Test (ECT, epicutaneous test)

• The epicutaneous test is used to diagnose so-called contact allergies (type IV reactions).

• On the back or forearm special main patches are stuck, which contain the test substances.

• The allergens are left on the skin for 24-48 hours, after which they are read.

• A second reading takes place 3-4d after the start of the test.

• Under certain circumstances, an additional reading after 4-8d may be useful.

IgE Antibody Test

• In Type I allergy, the body forms specific antibodies. These can be detected by different laboratory procedures in the blood.

Lymphocyte Transformation Test (LTT)

• LTT is used to complement the diagnosis of type IV allergic reaction.