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Hannah

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hannah works at London Allergy Clinic in London

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Published on: 15 Aug 2017 by hannahli

Ins and outs of allergy testing

It can be a
real pain when our immune system does not
work properly and it feels like a punishment, whether it's food allergies or any other type of allergy. This allergy off course come with the server to mild
symptoms that can be a prominent indicator to start avoiding foods, which can
cause a serious allergy. So when suffering from any type of allergies we need
to be aware of how to identify this allergy and take safety measures in case of testing them out.

That being
said, one must be aware of the type of diagnosis being used to identify food
allergies and how to initiate a proper treatment for it.

How is allergy testing?

A standard food allergy diagnoses is carried out by
analyzing the patient’s medical history and a blood or a skin test and should
be carried out by a certified allergist. This testing is very often confused
with food torelance, so allergy testing
is also a way to reasonably differentiate between food allergies and food
tolerance. In basic provisions, food
allergy is a quick and potential response by your immune system to food. Allergy
testing works to identify the body’s immune reaction to specific allergens to
take further action.

People ranging
from the age group of 4 years to 50 years
can suffer from an allergy but this can only be done through proper allergy
testing. There are many cases reported where patients get lucky and outgrow
their allergies or unlucky that the can developed allergies during later life.
Both of these events are a good reason to
seek out the answer through allergy
testing. 

 Types of test available for food
allergy testing

IgE skin tests – These tests are also known as
immediate hypersensitivity tests or prick test. An IgE test involves exposing the skin to a small amount of allergen
by pricking a small surface of the skin. It is identified by a small red swollen bump on the skin and
later observed by the allergist  

Challenge
tests-
This is a very simple test, but very risky. A challenge test involves
eating a small amount of allergen suspected to cause allergy but should only be
performed in presence of an allergist.

Blood tests-
 Finally, blood tests involve drawing
blood and performing an IgE test to determine the IgE antibody levels present
in the blood that match for certain allergens.

Now each
testing has its pros and cons when compared with each other. Skin tests are preferable as the results are very quick and
are less expensive the blood test.

However,
there have been rare cases where people on certain medication were not allowed
to perform these tests.  When compared to
blood tests, which allow for a laboratory test called an IgE analyze to be
performed, it is found more specific than skin testing. Challenges test are too
risky compared to the rest testing as it can occur with a placebo effect, which
would be hard to identify as an allergy.  

Whether you
are concerned about having an allergy,
test performed in the near future or not, it never hurts to educate yourself on
the ins-and-outs of the testing you may undergo

 

 

 

 

 

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