Allergy – examination

Description of screening for allergies

Testing for allergies – Group test, used, to learn or confirm, substances which cause allergic reactions.

Reasons survey the presence of allergies

Tests help determine the cause of allergic reactions. For information about the specific cause of the allergy will help you choose a method of treatment.

How to conduct a survey?

Before the test,

It is necessary to keep a diary, unto which you need to record the time of onset of symptoms of allergies and some additional data:

• Where did it happen;
• What ate the examinee;
• What came into contact.

Survey Procedure

There are several types of allergic tests:

• Blood test. The subject rolls up his sleeve. The orderly processing hand antiseptic. Around the shoulder rubber obvyzyvaetsya zhgut.V vein needle is inserted. Blood is collected into a tube. Harness untied, and the needle is removed. Medic bandage place the needle. The sample was sent to a laboratory for testing. The blood is tested for reaction to certain substances.
• Each sample - Suspected allergen (substance, that causes an allergic reaction) applied directly to the skin. Extras can be made small puncture or scratch. The suspected substance is pressed the needle into the surface layer of the skin. For every allergen tested is a separate scratch or skin prick. If an allergic reaction occurs redness and opehol. It usually takes about 15-20 minutes, these symptoms appeared. The procedure can be accompanied by skin testing. In this case, the allergen is placed in deeper skin.
• Patch testing – Patches, containing suspected allergens, placed on the skin. Then they are left in place during the 48 hours. Patches should not be removed or moisture vodvergat. After 48 – 96 hours, the skin will be investigated. If there is a response, in the placement of the patch will be felt itchy. Also, the skin may appear a blister.

After the examination,

Allergic test does not require any additional actions. The subject can return to normal activities.

How long does the procedure?

• Blood test: A couple of minutes;
• Each sample: 15-20 minutes;
• Patch testing: 48 hours with the patch, 48-96 hours – inspection.

Whether due to an allergic test pain?

At the site of application substances may slight irritation.

Results of testing for allergies

Once specific allergens to be determined, measures must be taken, to avoid contact with irritants. This will help reduce allergic symptoms.