the immune system of each person is to protect the body against disease-causing viruses and bacteria.In addition, the immune cells are able to recognize and destroy cancer cells.However, in some cases the very difficult defense system begins too much to respond to not pose for humans is absolutely no danger of such a completely seemingly harmless substances such as house dust, animal hair, pollen of various plants and so on. Most of these stimuli are not dangerous, butis itself immune reaction to them is a serious danger to the health and sometimes life.
allergy tests just designed to identify causes an allergic reaction to allergens substances.Only after the final establishment of a provoking allergen, your doctor may prescribe corresponding adequate treatment.I would like to make a reservation that the final cure of allergy today is not possible, but taking certain medicines, proper lifestyle and exercise, will help to forget about allergies for quite a long time.Treatment
Reasons for allergy tests
allergy test identifies provoking allergen with 100% very quickly.Already because of this, the prescribed treatment will be adequate and effective.However, there are other reasons, which we list below:
• This test will help identify other pathogens allergies, which people previously did not know
• Guaranteed belief that the body inadequate response, for example, in household dust,makes it possible to immediately and effectively, and in particular start receiving antihistamines or hold allergen-specific immunotherapy
• In case of no confirmation allergic nature, allergy test is able to identify other diseases, for example - in case of lack of enzymes to dairy products maycause rashes, allergic-like.On the external signs of allergy are often similar diseases such as pancreatic disease, fungal skin infections, chronic bronchitis, psoriasis, etc.
• No test can not be distinguished from drug allergy pseudoallergy.This is due to the fact that the intolerance of drugs is observed in both cases
allergy tests designed to refute or confirm the suspicions of the doctor.
most common tests - a skin test and a blood test for immunoglobulin E. These tests are not interchangeable, as their goal is to complement each other.Analysis of blood and several samples are usually enough to identify the allergen provoking the disease.In exceptional cases, the right to determine the culprit ill health fails.In such cases, a check for a mixture of various provocateurs, after which the suspects by eliminating allergens narrows and provocateur set.
skin test means by itself that the test substance should go directly into the thickness of the skin, which is usually done superficial injection.Initially investigated the most common allergens (house dust, pollen, etc.), For which a special needle in the skin made small holes, which are applied, and a few drops of the selected sample of the allergen.Thus, a small number of test substance wilts in the surface layer of the skin.Rate the result can usually be 15-20 minutes.In case if the subject is allergic to the substance administered, the puncture site will experience swelling and redness.
addition to skin tests are often carried out provocative tests.These tests are based on the reproduction of allergic reactions by introducing provoking allergen in tissue or organ most commonly affected in this disease.Provocative tests are divided into inhaled, nasal and conjunctival.Inhalation provocation test is performed to determine allergies to certain foods, and for the diagnosis of asthma.Conjunctival instillation of the test is selected allergen to the nose or the lower conjunctival sac.In case of itching, redness or tearing, the reaction is considered positive.
dangerous to test?If an allergy test is carried out in specially prepared for this polyclinic conditions by qualified personnel, the possibility of complications is very low.However, there are people with so strong a reaction to an allergen, that the introduction of even a trace amount of a substance can lead to serious consequences, up to the danger of life.In this respect, it is provocative tests are the most dangerous and powerful that can manifest asthma attacks and extensive skin eruptions.For such cases, an allergist should always be an overwhelming allergic reaction lifesaving drugs
allergy tests - whether there are errors?
probability of false positives is approximately 10%, and data failures usually occur in cases of error in diagnosis or immediately prior to the tests was accepted drug.For a couple of minutes before the start of the test, in order to avoid errors, applied to the skin more droplets, one of which must be rr histamine.In the absence of reaction to it, skin tests are not 100% guarantee will.In the second drop of the control fluid contains a diluted allergen.Reactions to this is rr, contrary to logic, should not be
Express allergy test
Not long ago, the public was presented the world's first home test for allergies Imutest, capable of detecting multiple allergens.At the same time the results of this test do not differ from the results of the test, if it was conducted in outpatient conditions.In Imutest application is very simple, since it relies on self-home use.
basis of his work is to identify the levels of specific immunoglobulin class E. Along with skin tests this kind of test in the world is considered to be the "gold standard."
According to statistics, nine out of ten people with allergies are sensitive to cat epithelium, pollen or house dust.Imutest measure of sensitivity to this key triumvirate allergic triggers that cause symptoms of rhinitis, eczema and asthma.It is assumed that in the case of a negative result for the three allergens, observed symptoms may be caused by no allergies.
Imutest works very simply.To analyze completely painlessly with an automatic disposable lancet taken one drop of blood, which is then added to the test device, and diluted with a buffer solution.For thirty minutes, the analysis results show up on the test device in the form of one / several red lines.
allergy tests Imutest - registered means honey.destination, clinical trials have shown that complete coincidence of the results with skin tests and radioallergosorbent test (RAST).