How to test for baby allergens and how to test for children s allergens

Checking the source of allergies requires the baby to have an empty stomach for more than 4 hours, so it is best to go for a blood draw the first day** and the next morning. There are many reasons for infant allergies, such as food, clothing, heat and cold, pollen in the air, fur, dust mites, mold, etc., and sometimes it is difficult to avoid finding out, so parents should take careful care and observe carefully. **There is no good way for the baby's allergies to be there for the time being, and the most effective way is to prevent it.

Pay attention to your child's diet, observe and record your child's diet for a long time, and completely avoid contact with allergic foods if allergies appear.

1) Intradermal test:

Through intradermal injection of allergens, the reaction of ** is observed after a certain period of time, and whether you are allergic to this allergen is determined according to the situation of ** reaction.

2) Prick test:

The prick test can be regarded as a special kind of intradermal test, in which the prick skin test solution is first dropped on the **, and then the prick needle is passed through the droplet and punctured into the skin. **The prick solution is only 1/10,000 of the intradermal test, and the safety is high. Due to the small size of the skin lesions, the patient suffers.

Our department uses the international standardized antigen - German Arog pricking solution. (1) Inhalation allergens include mites, molds, mugwort, elm, willow, poplar, animal fur, pollen, etc. (2) Food allergens include fish, shrimp and crabs, pork, beef and mutton, milk, eggs, beans, peanuts, condiments, etc.

Results are available in 15 minutes.

Principle: When a certain allergen enters **, patients with immediate allergic reactions to certain substances immediately and specifically cause mast cell degranulation within **, release histamine and other active substances, resulting in local telangiectasia (erythema), enhanced capillary permeability (edema, wheal), and positive people indicate allergy to the antigen.

Operation method: first drop the puncture skin test solution on the **, and then use the puncture needle to pass through the droplet and gently puncture it into the skin.

3) Patch test:

Patch testing is mainly used to check for contact dermatitis. The specific method is to stick the reagent on ** for a period of observation for a period of time, and judge whether you are allergic to this substance according to the reaction of ** to the contact. Using European standardized patch reagents, the detection is accurate.

Including drugs, rubber products, skin care products, preservatives, toys, home decoration materials, hair dyes, printed matter, textile dyes, bleach, metal jewelry, spices and other industrial, agricultural and daily chemical products and other 20 categories of hundreds of sub-categories of allergens.

Principle: The suspected sensitizing substance is applied to the patient, and after entering the body through ** or mucous membrane, the antigen is presented to T lymphocytes by antigen-presenting cells, so that the specific T lymphocytes are activated and inflammatory response is induced.

Allergen Test Methods:

There are two commonly used and feasible methods: food recording and ** trial.

1.Food recording method: record the types of food eaten each month, such as rice, eggs, shrimp, chicken, cucumbers, tomatoes, etc., the time of ingestion (such as month, day, hour, etc.), and the time of urticaria.

When urticaria occurs, the relationship between food and urticaria can be found in the records. In general, more attention should be paid to the food eaten 12-24 hours before the occurrence of urticaria, although the method is simple and easy to master, but it is difficult to get accurate results.

2.Test: This type of examination can generally be done in a specialist or respiratory department, the method is simple, and the child is not uncomfortable.

Inhale skin test solutions containing milk, rice, soybeans, etc., with an empty needle, and make multiple punctures on the upper arm to observe allergic reactions to a variety of foods. However, due to the complex digestion and absorption of food in the body, the physiological and biochemical changes that occur cannot all be reflected in the process, so the results obtained, even if positive, need to be comprehensively analyzed to finally determine whether it is the food that causes allergies. To determine a food allergy, several methods must be comprehensively analyzed and combined with clinical practice to finally determine whether a certain food needs to be stopped.

Even if you stop eating a certain food, it should not be too long, and at the same time, you should not stop eating too much, so as not to affect the child's growth and health.

Introduction: Children are allergic, allergens can be tested, because some children have particularly strange allergens, and some allergens are particularly common, and the symptoms of children's allergies may be aggravated if you are not careful, which will bring danger to your child's life.

I used to be a kindergarten teacher, and then I knew that there were some children's allergens in the class, some children were allergic to egg yolks, and some children were allergic to egg whites, because children were allergic to tomatoes, and some children felt particularly strange about cold allergies, but they had to take care of the children, and they didn't know how to help him avoid harm, and they didn't know how to take care of their children, so as parents, they had to take their children to check the allergens when necessary. This is more conducive to the later growth of the child has not known the allergen, has not known what allergies the child has because of these will also make the child's body uncomfortable, but also affect the healthy development of the child, do not always save money or to save time, do not take the child to check, you must know that some serious allergies will also affect the safety of the child's life.

And everyone should know that each child has a different state of allergies, and the duration is not the same, you can correspondingly do some allergen testing, and the requirements will be different, accidental allergies, there is no need to go for examination, but the allergy is particularly serious, and it needs to be carried out repeatedly, you must do the allergen test, only by clarifying the allergen can you avoid the allergen, and you can also do some desensitization. Your child's main allergic reaction is not very serious, and the duration is relatively short, then you can not do more serious, be sure to take the child to do it, although the allergen detection is not very perfect, but there are many factors that can be detected.

It should be tested, there is no way to judge by appearance, take the child to do a test, to be able to judge whether the child has allergies.

It should be tested to have a good response, so that the child will not have frequent allergies in life, and there will be a particularly good protection for the child.

I think it should be, so that you can know what causes your child's allergies, and parents will pay attention to it in the future.