My bizarre allergen blood test results

Posted on: Thu, 01/10/2002 - 8:31am
Anna's picture
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Joined: 07/20/1999 - 09:00

Well, I said I'd post about my blood test (CAP RAST) results, so here I go.

I tested for many allergens, and when I received the interim results, I was shocked. I had positive responses to most of the foods I tested for. But weirdest of all. . .

Despite the fact that I'm anaphylactic to several foods, some of these results were only 'moderate'.

As a result, I'm confused about the results. Any ideas? Suggestions?

[This message has been edited by Anna (edited February 18, 2002).]

Posted on: Fri, 01/11/2002 - 1:47am
BENSMOM's picture
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Joined: 05/20/2000 - 09:00

Don't get your hopes up based on this, but I'm pretty sure a skin test can remain positive long after an allergy has been outgrown. My allergist said that a CAP RAST between 0 and 5 means a 60% chance of not being allergic. I'm not sure if that refers to false positives for people who were never allergic, or if it also refers to people who were allergic and my no longer be. I would retest in a year for peanut and see if it comes down more. How long ago was your last reaction, not counting the skin test?

Posted on: Tue, 01/15/2002 - 5:41am
Anna's picture
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Joined: 07/20/1999 - 09:00

Thanks for your comments, everyone.
[This message has been edited by Anna (edited February 18, 2002).]

Posted on: Tue, 01/15/2002 - 5:50am
Anna's picture
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Joined: 07/20/1999 - 09:00

Hi, Bensmom.
Thanks for the info.
[This message has been edited by Anna (edited February 18, 2002).]

Posted on: Tue, 01/15/2002 - 6:11am
BENSMOM's picture
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Joined: 05/20/2000 - 09:00

These tests just make me crazy (just venting here.) Everyone else's score seems to be fairly indicative of the severity of their allergy, but Ben scored over 100 and has never reacted. He has had what I would consider significant enough amounts of peanut to react but never has. I'm so grateful he's never reacted but at the same time, it's very baffling to have such a high score. Anyone else in this boat?

Posted on: Tue, 01/15/2002 - 7:26am
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Joined: 05/28/2009 - 16:42

Bensmom,
I'm not exactly in your boat, but I have a similarly confusing situation. My son's score was over 43,000, on a scale of 18,000 - his reactions are anaphylactic. I don't recall anyone posting these kinds of numbers. The name of the test on the copy we have is "MiniRAST".
Any info, anyone? Has anyone else had whatever this particular test is?
We are going to have our son retested later this month so we have up-to-date numbers for the school system. Which blood test should I request?
Which one does everyone feel is the "best"? I know, none of the tests really say much of anything except "you're allergic" - just wondering if there is a 'favorite' among us here? (Not that anybody likes ANY of them!)
Thanks,
Tammy

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