blood levels


so my dd's peanut RAST levels were 4.4 out of 100. Dr. said she has a chance to outgrow. Anyone been here and have luck with this. I assume she could have a severe reaction even with such low numbers.

On Aug 8, 2007

My son's Cap Rast recently came back a 2.03. The dr did not mention outgrowing. We had him skin tested again and his wheal came back quite large. This eliminates the possibility of a food challenge. We will have his blood checked in another few years.

I would ask your dr to skin test him. That may give you some insight.


On Aug 8, 2007

a 4.4 will have nothing to do with *how* your child will react. It could be hives, or it could be full blown anaphylaxis. Do keep a record of the caprast number and see if over the next couple years, it doesn't continue to come *down*....but until you see a negative(under .35) I would continue to be VERY careful! Good luck

edit...a 4.4 would still be considered high, a *class 3*(out of 6)....just to give you an idea. my son's egg is a class 3 and he's had anaphylaxis from raw egg, very scary! HUGS ------------------ Chanda(mother of 4) Sidney-8 1/2(beef and chocolate, grasses, molds, weeds, guinea pig, hamster & asthma) Jake-6 1/2(peanut, all tree nuts, seasame seeds, (avoiding all seeds, legumes &coconut)eggs, trees, grasses, weeds, molds, cats, dogs, guinea pig & eczema & asthma) Carson-4 (milk, tree nuts(avoiding peanuts and seeds)soy, egg, beef and pork, cats, dog, guinea pig, hamster, grass, mold, dust mite and EE) Savannah-1 1/2 (milk, beef and egg, dog(avoiding peanuts, tree nuts, strawberries, sesame seeds, legumes and corn)

[This message has been edited by chanda4 (edited August 08, 2007).]

On Aug 8, 2007

My DD's initial peanut CAP/RAST was around where your son's is (I don't have the labs in front of me, but I think it was around 4??). This was a month after her 1st direct ingestion of peanut (peanut butter crossed her lips) and an anaphylactic reaction. We knew it was serious, regardless of the #, because she already had a reaction. She was about 15 months when she had her initial she is 6 and her CAP/RAST is >100 (Class 6). Each time she had blood work (roughly once a year)--the #s increased.

I'm not sure how old your son is, but there is definitely hope of him outgrowing (roughly 20% do). My DD had a slimmer chance due to her reaction history, other food allergies (egg, tree nuts, etc). If peanut is your son's only allergy, then I'd think outgrowing is a possibility.

Good luck! Nicole

On Aug 8, 2007

My son's RAST was lower than that and he still had an ana reaction.

On Aug 9, 2007

My son's RAST was 0.82 and he had an ana reaction. No throat closing, but the lips, eyes tongue all swelled and hives all over.

On Aug 9, 2007

I am glad to hear you ask this question. I wondered the same thing, however after the more experienced & knowledgeable parents (thanks again so much) explained to me it doesn't really matter what number they are. I can not remember my son's number, but he is almost 2 and a class 3. I would love to see if his number has changed, but the doctor said they won't test him again for a few more years.