Chances of Second Child Having Peanut Allergy ??

Posted on: Fri, 03/19/1999 - 3:23pm
Trish's picture
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Joined: 01/21/1999 - 09:00

I have a five year old son who has a peanut allergy and I also have an 18 month old son whom has never knowingly consumed any peanut product, so I do not know if he allergic or not. My question is - What are the chances of my second son being allergic to Peanuts and how would I "SAFELY" find this out?? I would like to know before he starts kindergarten or playschool in a couple of years.

Posted on: Sat, 03/20/1999 - 12:42am
anonymous's picture
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Joined: 05/28/2009 - 16:42

Trish, the following site from the British Medical Journal addresses peanut allergy among siblings, atopic families, sensitization, etc. [url="http://www.bmj.com/cgi/content/full/313/7056/518"]http://www.bmj.com/cgi/content/full/313/7056/518[/url]
I personally would continue to keep your young child away from all peanut products and read all the research you can find on the subject. When your child is older, you may want to consult with a board certified allergist and review your concerns and the studies you have read.

Posted on: Tue, 05/18/1999 - 6:57am
Patsmom's picture
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Joined: 05/17/1999 - 09:00

Trish--it's my 2nd son who has the peanut allergy. My oldest isn't allergic to any foods. What the allergist said is that if we have a 3rd child, we should keep him/her completely away from all peanut products until age 3. Then we could have the skin test done before introducing peanut into the diet. My husband also had food allergies as a child (corn & milk) & his neice is allergic to some nuts (pecans & walnuts I think, but not peanuts). The allergist said that with the family history, another child would be very likely to have some kind of food allergy, though it wouldn't necessarily be peanut. I don't know how my older son escaped the food allergies, but I'm sure glad he did!
Karen

Posted on: Tue, 05/18/1999 - 2:00pm
EILEEN's picture
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Joined: 04/06/1999 - 09:00

How about the RAST test to see if he has any IgE antibodies to peanuts as a first step?

Posted on: Wed, 05/19/1999 - 5:56am
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Joined: 02/17/1999 - 09:00

Hi, just wanted to let you know that my brother has peanut and tree nut allergies but my two sisters and I are completely free of all types of allergies. My babysitter's eldest son has a peanut allergy but her younger one has no allergies. In my anaphylaxis support group there are some families where there is more than one child with a food allergy, not necessarily the same food allergy, and others where only one child has the allergy. There is no predicting. Avoiding tree nuts and peanuts and other allergenic foods is a good start and I agree that the RAST test might be in order. Take care.

Posted on: Sat, 07/17/1999 - 10:27pm
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Joined: 06/25/1999 - 09:00

I have 2 daughters16 months apart. The older child is the one with peanut allergies. She was not diagnosed until she was 3 1/2yrs. My younger daughter had trouble gaining weight and did not eat much so we fed her a lot of peanut butter. She loved it and never had a problem. Of course we don't have it in the house anymore, but I may consider letting her have it again in school, so long as she washes and brushes when she gets home.
Good luck,
Mary Lynn

Posted on: Sun, 07/18/1999 - 9:12am
CathyT's picture
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Joined: 07/11/1999 - 09:00

Trish--I myself am PA, and have 2 boys, one with PA. Two different allergists told me to do the following for my sons--avoid all nuts til 2 years of age. At that time, do a RAST test. If it came back negative, then do an oral challenge or skin test. With my oldest, all tests & challenge came back neg.
With the second, his RAST test came back high enough that we will not skin test or challenge. However, we will be repeating the blood tests periodically. The reason both drs did not want to wait til 3 years of age, was due to accidental ingestion from preschool, parties, etc. which really starts to kick in after 2 yrs of age.

Posted on: Thu, 07/22/1999 - 11:51am
Abitha's picture
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Joined: 07/06/1999 - 09:00

Trish, Be careful with your second son. My oldest son (12 yrs.) is PA. I only suspected that my youngest may possibly be PA because of his brother's allergy. We found out because he ate a bite (just a bite!) of one of those Lance cheese crackers with peanut butter inside. My younger son actually is more severely allergic than my older son. Now I am paranoid about everything he eats.

Posted on: Tue, 08/10/1999 - 11:24pm
James's picture
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Joined: 08/11/1999 - 09:00

I pray your kids won't have the allergy.
Sometimes I wonder when I have children, will they be as allergic as I am? I hope not, but if they are, we will all deal with it. There are many worse disabilities, diseases, and social problems that our children may have. Let's thank God that we have been blessed with perfect children, and that their condition is preventable and treatable. Amen.

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