False Negatives/Positives??

Posted on: Fri, 03/15/2013 - 5:05am
ShayandBlakesMommy's picture
Offline
Joined: 02/01/2013 - 16:17

Ok, I need some feedback bc I'm now thoroughly confused! :\ My son had a RAST (not a CapRAST) done at about 4 months old (bc he had head to toe eczema) which came back a 2 for peanut (.36) & a 3 for wheat (.6). The doc said these results could be false bc his immune system was still developing, but recommended I still go on a peanut & nut exclusion diet. I did this & the only relief my son had was from the steroid cream the doc perscribed, Desonide. A month & a half into this diet, we took him to an allergist & I insisted that my son have a pin prick test done for several things, & he came back with no allergy to peanuts nor wheat but he was a 5 for dairy! Keep in mind, the RAST he had done showed NO allergy to dairy. Since then, I've switched my exclusion diet to milk products (since I've read that skin testing is more accurate than blood, especially the RAST) & have been on this for about 2 1/2 weeks. My son's eczema hasn't completely disappeared yet, but I've read it takes a month to see improvement in nursing infants & especially in skin rashes. But it has definitely improved. Still, there seem to be unexplained flare ups from time to time, which could be induced by environmental factors (like the heater being on, etc). We've also since stopped using the steroid cream completely. The allergist said we shouldn't be using it that much & especially not on his face (which is primarily where we were using it...). We're now using Vanicream & Aquaphor. But after reading stuff on this site about how skin tests could be wrong too, I'm thoroughly confused...at the time of his RAST, I was eating everything (wheat, nuts, dairy, etc). But, at the time of his skin prick test, I wasn't eating wheat or nuts. I asked the allergist if this would've given a false negative for those & he said no...but I've read otherwise. I'm thinking of having my son CapRAST tested for wheat, nuts, & dairy now, just to be sure. He is now 6 months old & I'm afraid of introducing baby food to him for fear of him having a bad reaction to anything. Anyone out there have a similar experience? Advice??

Peanut Free Store

More Community Posts

Latest Post by shaymacgregor60260 Sun, 12/15/2019 - 7:38am
Comments: 0
Latest Post by Italia38 Fri, 12/13/2019 - 4:55pm
Comments: 1
Latest Post by absfabs Wed, 12/04/2019 - 12:29pm
Comments: 4
Latest Post by absfabs Wed, 12/04/2019 - 12:25pm
Comments: 3
Latest Post by absfabs Wed, 12/04/2019 - 12:22pm
Comments: 4
Latest Post by penelope Tue, 12/03/2019 - 4:46pm
Comments: 9
Latest Post by penelope Tue, 12/03/2019 - 4:43pm
Comments: 2
Latest Post by sunshinestate Mon, 12/02/2019 - 2:34pm
Comments: 5
Latest Post by absfabs Mon, 12/02/2019 - 11:17am
Comments: 482
Latest Post by Italia38 Fri, 11/29/2019 - 1:38pm
Comments: 4
Latest Post by penelope Tue, 11/26/2019 - 4:31pm
Comments: 7
Latest Post by sunshinestate Thu, 11/21/2019 - 10:31am
Comments: 172
Latest Post by william robenstein Mon, 11/18/2019 - 10:35am
Comments: 1
Latest Post by sunshinestate Sun, 11/17/2019 - 1:16pm
Comments: 3

More Articles

When love is in the air we can get caught up in the moment and throw caution to the wind. However, if you have a...

Dogs have some things in common with humans when it comes to their health. They can have a wide range of allergies, just as humans can develop....

You already know that if you or your child has a peanut allergy you need to avoid peanut butter. Some...

So many wonderful recipes call for peanut butter. These recipes can still be enjoyed by experimenting with peanut butter replacements.

...

Are you craving sweets? Those with peanut allergies must be especially careful when indulging their...

For those with peanut allergies, baked goods present a serious risk. Many baked goods do not appear to contain peanuts, yet were baked in a...

Those who have peanut allergies know to avoid peanut butter cookies, of course – but what about other...

For anyone who has had a peanut allergy diagnosis, it is necessary to avoid eating peanuts entirely. However,...

Are you looking for peanut-free candies as a special treat for a child with...

Do you know what's in the face paint often used for Halloween costumes, school carnivals, and other events? If you're worried about smearing...

Vegetable oil is healthy before it is hydrogenated and a process that requires adding hydrogen to unsaturated fats. Oils that are often...

Peanut allergies don’t begin to cause problems for people the first time they are exposed to peanuts. Rather, the immune system first develops...

Anxious food allergic kids, understandably concerned about avoiding allergens, can become so restrictive in their food choices that weight loss...

The relationship between anxiety and food or other allergy is a complicated and puzzling one. Research has shown that stress can exacerbate...

Welcome to PeanutAllergy.com. Before you begin you must verify your email address. Please check your email and click on the link and you will...

If you have a food allergy, you will probably need to make some changes to your diet...

Just 30 seconds of mindfulness, of quieting our thoughts by being attentive to the present moment, can help manage stress and anxiety.

The...

Those affected by peanut allergy might have heard about basophil activation tests (BATs), a potentially accurate tool for diagnosing food allergy...

When your child has a food allergy, you want to make sure they are safe in school...

It’s the time of year when holiday parties, and family gatherings can make allergen avoidance more problematic. Whether you celebrate Christmas,...