anyone heard of LRA test for allergies?

Posted on: Wed, 04/07/2004 - 10:39pm
McMelon's picture
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Joined: 09/21/2002 - 09:00

My nephew is being tested for allergies using the LRA test (Lymphocyte Response Assay). It is supposed to be able to detect a huge list of foods, enviro, molds, chemicals, preservatives, chemicals, metals. I have never heard of it. I was wondering if anyone here has had this test? My kids had skin and rast. Two are pa so far (2yo hasn't been tested yet and baby #4 is on the way). Thanks, Melody

Posted on: Wed, 04/07/2004 - 11:39pm
ajinnj's picture
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Joined: 05/13/2003 - 09:00

[url="http://www.parentsofallergicchildren.org/elisa_act_test.htm"]http://www.parentsofallergicchildren.org/elisa_act_test.htm[/url]
HOW IS ELISA/ACT LRA TESTING DIFFERENT FROM RAST TESTS?
RAST (IgE) only detects immediate allergic reactions to about 100 dietary or environmental substances. This test is useful to assess hives, wheezing, or shock that may appear minutes after being exposed to a reacting food or chemical.
The ELISA/ACT LRA are comprehensive and reliable tests able to identify the causes of delayed allergy/hypersensitivity reactions. These can occur from hours to weeks after exposure. This is the only test that can evaluate all three delayed hypersensitivity pathways, including Antibodies, Immune Complex and Cell Activation. Because the ELISA/ACT LRA is functional, it allows EAB to screen out protective antibodies, such as IgG, which identify only those reactive and provoking items. Most people do not realize they are reacting to these substances since the onset of symptoms does not occur quickly. For example, people may develop- achiness hours to days after a food or chemical exposures. ELISA/ACT LRA measures sensitivities to as many as 400 times from the following general categories. A complete list of the items tested can be provided upon request.
Allison

Posted on: Sat, 04/10/2004 - 10:22am
McMelon's picture
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Joined: 09/21/2002 - 09:00

Thanks Allison for typing all that in. That took alot of effort. I actually found the link you mentioned earlier. I am planning on asking our allergist about the test next week. I was wondering if anyone had had the test. I didn't get very many responses here. I know I had never heard of it. It almost sounds too good to be true or have valid resutls. Thanks for your efforts again, Allison. Melody

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