There are generally six types of allergen screening.
1. In vitro serum allergen-specific IgE measurement: used for type I allergic reactions in vitro allergen detection, commonly used in the United States of America's IVT series of reagents: used for the detection of ingestive (fast-acting phase), inhalation allergens, can detect the common nearly 30 kinds of allergens.
2. In vitro serum allergen-specific IgG determination: mainly used for the detection of food delayed-phase. There are two kinds of food allergy: one is within a few hours after ingestion of allergic symptoms, known as the rapid onset phase, mediated by IgE; one is several days after ingestion of allergic symptoms, known as the delayed onset phase, mediated by IgG, chronic allergies need this test.
3. Plaque test: mainly used for the detection of type IV allergic reactions, such as contact detection: clothing dyes, metal jewelry, leather, hair dye, etc., at present the main use of Sweden imported plaque reagent.
4. Intradermal injection of allergens detection: including intradermal test, puncture test and skin scratch, due to the allergens injected into the body, so there is a certain degree of risk, should have anaphylactic shock rescue equipment and rescue drugs. This method is relatively old, the patient is more painful, the reagents available are few, and its complications include local pain, needle fainting, local pus, and systemic reactions.
5. Auto-serum skin test: the cause of allergic diseases is multi-faceted, both may be allergic to external substances, there may be autoimmune problems. Autoantibodies that cause allergic diseases include thyroid autoantibodies, anti-IgE antibodies, and anti-IgE receptor autoantibodies. Autoantibody testing is the main test for screening for autoantibody-induced diseases.
6. Bio**** vibration detection and treatment instrument (MORA)
Wish you good health!