Getting a younger sibling tested?

Posted on: Thu, 09/20/2007 - 2:18pm
KateDe's picture
Offline
Joined: 09/20/2006 - 09:00

My 4 year old is PA. I don't know about my 2 1/2. The allergist said I could test her myself by putting a little on her cheek, wait, tongue, wait and then feed. This seems insane to me. I would much prefer to have her bloodwork done. My doctor is well known, respected etc.... so what I'm asking here is is his advice normal? Has anyone ever done this or heard of doing it with a younger sibling?

Posted on: Thu, 09/20/2007 - 2:25pm
DebO's picture
Offline
Joined: 03/15/1999 - 09:00

My daughter is PA and when her younger brother was 4 he reacted to eggs. He was tested normally for peanut allergy - and cam up negative on both skin and blood tests. Our allergist wanted to go on with an oral challenge, but since my house is peanut free I didn't see any point in it. He can be tested when he is older.
I suppose just trying it out as your doctor described is the way many people find out about food allergies, but I think with the history of an older sibling who is allergic I would expect standard testing.
good luck

Posted on: Thu, 09/20/2007 - 2:45pm
gvmom's picture
Offline
Joined: 08/24/2005 - 09:00

Our older son is PA/TNA and our younger son is Egg allergic. Our younger son was RAST tested for Peanut and also skin tested. But we didn't try testing him with an actual oral challenge until just last month -- which means he was about 5 1/2. He also had recently undergone RAST & skin tests again for other stuff, but Peanut was in there too, just to be sure.
When we tested him, we did start with a bit on his arm. Then just a near non-existent amount to taste. And a couple small amounts..... like the size of a pea.... after. We haven't done anymore though. But, he didn't react.
I don't think I would have done that at 2 1/2 though. Actually, I know I wouldn't have done that at 2 1/2.
If there isn't really any pressing reason to know, and your house is peanut free anyway, I might wait. Only do a bloodtest and skin test, maybe. We only really did it this year because my younger son was starting Kindergarten. We all live Peanut, tree nut and egg free at our house, so it only became a bigger issue when it meant possible daily exposure at school.

Posted on: Fri, 09/21/2007 - 12:24am
bethc's picture
Offline
Joined: 04/18/2005 - 09:00

With her having an allergic sibling, I think you should wait until she's 4 or so to expose her to peanuts. She's in a higher risk category for developing allergies, and I've read that they think you should delay introducing highly allergenic foods with a family history. Then once she's older, you could go with either blood tests first or the self-testing the way the allergist said. After all, the odds are still quite low that she would be allergic to peanuts specifically.
With my younger DD, because she'd had 2 episodes of mystery hives while she was young and thus we suspected some food allergy, I had them do blood tests on her first when she turned 4. But when those came back negative, the allergist gave me the go-ahead to feed her peanuts and nuts. He said anyone can become allergic to any food at any time, but there was no reason to believe she had PA.
I did put a little peanut butter on her cheek one day, then on her lip another, then had her taste a miniscule amount another. Then we worked up to a few Reese's Pieces. I still haven't felt brave enough to give her a whole peanut butter cup or anything, which is probably silly since she's shown no sign of PA. And my DS, who's the oldest, eats whole peanut butter sandwiches away from home and I don't worry about him. It's just that I've seen what can happen when I didn't think my other DD was allergic to peanuts but really she just hadn't eaten it enough times to display a reaction yet. Better to be cautious about how much they eat when you're still testing the waters.

Posted on: Fri, 09/21/2007 - 1:10am
SpudBerry's picture
Offline
Joined: 07/23/2002 - 09:00

Having had a 2nd child turn out to be allergic even after he originally tested negative.... here is my experience:
[url="http://uumor.pair.com/nutalle2/peanutallergy/Forum1/HTML/009287.html"]http://uumor.pair.com/nutalle2/peanutallergy/Forum1/HTML/009287.html[/url]
[url="http://uumor.pair.com/nutalle2/peanutallergy/Forum1/HTML/009316.html"]http://uumor.pair.com/nutalle2/peanutallergy/Forum1/HTML/009316.html[/url]
------------------
Sherlyn
Mom to 7 year old twins Ben & Mike
One PA since 13 months
One PA since 7 years
Stay Informed And Peanut Free!

Posted on: Fri, 09/21/2007 - 3:47am
KateDe's picture
Offline
Joined: 09/20/2006 - 09:00

Thank you for the responses. I asked because my little one started preschool. So far I've just kept her away from peanuts and told the preschool directer to do the same. But I really do need to find out.

Posted on: Sun, 09/23/2007 - 7:15am
SkyMom's picture
Offline
Joined: 10/27/2001 - 09:00

My son was given the SPT at the age of three. His older sister is PA. Thankfully he tested negative and occasionally eats may contains if his sister isn't with us. He is now going to be eight in November and has never had any problems.

Posted on: Sun, 09/23/2007 - 8:31am
April in KC's picture
Offline
Joined: 08/28/2006 - 09:00

We had this dilemma when our middle son turned 3. (His oldest brother has PA.) Our allergist agreed to do an ImmunoCap blood test for several foods, and it came back negative for peanut. We still do not feed him peanuts, but he does not carry an Epi.
April

Posted on: Tue, 09/25/2007 - 7:41am
bethc's picture
Offline
Joined: 04/18/2005 - 09:00

Raising for Lilysmom.

Posted on: Tue, 09/25/2007 - 8:14am
krc's picture
krc
Offline
Joined: 01/16/2007 - 09:00

My 11yo dd is PA/TNA. We have avoided all nuts with our two younger children.
Our allergist recommended RAST testing them first. If that comes back negative, then they will skin test. If that comes back negative, then they will food challenge IN THE OFFICE. I also think they wanted to wait until age five for the food challenge part, I'll have to recheck my notes for sure.
So far they have both RAST tested negative but I haven't had the skin test done yet. I actually need to get on this...for right now it is really no problem avoiding but I would like to have the peace of mind, especially with so many school years and bday parties ahead!

Posted on: Tue, 09/25/2007 - 4:26pm
SFMom's picture
Offline
Joined: 11/27/2006 - 09:00

My girls are ages 13 and 11. Our allergist doesn't do the blood tests unless the patient is HIGHLY allergic. He says that the blood tests often do not show accurate results and that the skin tests are more accurate.
With that said...I waited until younger DD was about 3 years old to have her get the skin prick tests. Peanut was negative. In fact, I think everything was negative.
Fast forward two years later...at age 5, she accidently took a bite of a peanut butter cookie and spit it out. But a year later when I got her tested again (around age 6), she was postive for peanut and legumes, just like her older sister.
When my kids were little, I didn't realize the cross-link between legumes and peanuts. Knowing what I know now, I wish I would have kept younger DD away from legumes as a baby (e.g., peas or tofu). I sometimes wonder if that one bite of the peanut butter cookie, compounded by eating legumes, caused her nut allergy to bloom full force?
I also wonder....if this food allergy thing is totally GENETIC, then is there anything we really could have done to prevent our kids from being allergic to legumes and nuts? I mean....would the allergy have happened no matter what?
Maybe one day they'll identify the gene that causes this and maybe (wouldn't it be great) if some gene therapy would fix it for good?! Personally I believe that there is a strong genetic component to this, and that it's not an "environmental" or "over-sanitation" issue.

More Community Posts

Peanut Free and Nut Free Community

create a new community post
Latest Post by latamdatelhh Thu, 09/19/2019 - 11:45pm
Comments: 0
Latest Post by blprestangen Mon, 09/16/2019 - 1:06pm
Comments: 12
Latest Post by mom2two Mon, 09/16/2019 - 1:03pm
Comments: 18
Latest Post by Kathryn Mon, 09/16/2019 - 1:02pm
Comments: 7
Latest Post by TheDaddy Mon, 09/16/2019 - 1:01pm
Comments: 9
Latest Post by desmond Mon, 09/16/2019 - 1:00pm
Comments: 1
Latest Post by desmond Mon, 09/16/2019 - 12:58pm
Comments: 19
Latest Post by desmond Mon, 09/16/2019 - 12:55pm
Comments: 1
Latest Post by TeddyCan Mon, 09/09/2019 - 4:32pm
Comments: 10
Latest Post by DTurner Mon, 09/09/2019 - 4:31pm
Comments: 5
Latest Post by B.M.18 Mon, 09/09/2019 - 4:30pm
Comments: 3
Latest Post by abolitionist146 Mon, 09/09/2019 - 4:28pm
Comments: 2
Latest Post by nutfreenyc Mon, 09/09/2019 - 4:19pm
Comments: 4
Latest Post by AllergicTeen2 Mon, 09/09/2019 - 4:18pm
Comments: 2
Latest Post by PeanutAllergy.com Fri, 09/06/2019 - 1:52pm
Comments: 1
Latest Post by mom1995 Fri, 09/06/2019 - 1:52pm
Comments: 2
Latest Post by mom1995 Fri, 09/06/2019 - 1:52pm
Comments: 35
Latest Post by PeanutAllergy.com Fri, 09/06/2019 - 1:52pm
Comments: 2

More Articles

If you have a mold allergy, you’ve likely been advised to remove all sources of mold from in and around your house. But it doesn’t stop there....

You may be surprised to find that peanut butter is used to make many products. Someone who has a peanut...

What if, while attending a summertime family picnic, a food-allergic child shows signs of anaphylaxis. In a panicked instant, adults realize the...

Are the signs of nut allergies different than those of peanut allergies? Many people who have an allergic reaction after eating a peanut butter...

There is much buzz in the news about the potential health benefits of fecal transplants, and some of that benefit may extend to people with food...

More Articles

More Articles

If you or your child has a food allergy, a doctor or allergist might have talked to you about “co-factors.” Allergy co-factors are substances,...

An epinephrine auto-injector provides an emergency dose of epinephrine (adrenaline) to treat life-threatening allergic reactions. Those who have...

Oyster sauce is used for a variety of recipes, including as an earthy dressing for noodles, vegetables, and stir-fries, or as a base for other...

The high incidence of food allergy in children, and the reason many kids eventually...

Parents of children with food allergies often share tips about safe foods, allergy-friendly restaurants, and other experiences and challenges of...

Because food allergies are so common among children today, a great idea for sharing information with other classmates is to incorporate the topic...

When a child is diagnosed with peanut allergy, the implications ripple past the parents to rattle the rest of us - older siblings, grandparents,...

Your best defense against anaphylactic shock is to know what you’re up against. Anaphylaxis is a severe, life-threatening allergic reaction....

Inhalers Sometimes Contain Soy

Many people use inhalers to take the drug albuterol to help their asthma or allergies, and those with COPD...

Some people with shellfish allergy have concerns about consuming sea salt that might be contaminated with traces of shellfish. Though there are...

Nearly 25 percent of children with a peanut allergy will outgrow it. However, there is a small risk...

Many people managing food allergies understand that allergy is an immune system response to a specific food. What people may not realize is that...

Salmonella Is One of the Most Common Types of Food Poisoning

According to the U.S. National Library of Medicine, Salmonella enterocolitis...

Heading into spring and Allergy and Asthma Awareness month, many people load up on antihistamines and get their inhaler prescriptions renewed. A...