When it comes to allergies, most doctors still chose skin tests in the blood. The main factor is the price and accuracy. Prick skin testing is much less expensive than a blood test and the results are mostly found in the ground compared with a blood test for allergy. Most of the research also shows skin tests to be more accurate than blood tests, although the companies who market analysis Blood allergy claim that the new evidence of improvement are as good as the skin test or tests of zero.
Blood tests or RAST type tests are designed to measure the level of IgE anti-bodies as they are introduced to allergens. The greater the increase in the severity of the allergic reaction. Originally IgE antibodies where labeled with a radioactive substance so they could be measured as allergens when they enter. The RAST test is probably more useful for people who are at high risk of serious allergic reaction skin tests may be in. This may include infants, the elderly and people with immune systems weakened. The test is marketed by many pharmaceutical companies under various names including the CAP, Rist and MAST.
Skin prick tests and zero implies a small puncture or scratch on the skin of patients that allow a small amount of allergen is introduced. After the allergen enters the doctor can see if there are signs of an allergic skin reaction. During the rehearsal, several allergens will be tested in a body of patients. This differs from patch test the allergen is only against the skin and is usually used to detect the allergens that cause contact dermatitis reactions.
In deciding what allergy test is best for you your doctor is still the best to ask. If the results are not definitive from a type of test may have to use another for a better result for confirmation.
For more information on the RAST Test visit Natural Allergy Cures
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