Thursday, August 23, 2012

Returning and Food Allergies

First, in my last post here, back in June, I mentioned that I was moving over to another blog. That blog would be to focus on writing about homeschooling and homeschooling with Apraxia. It never felt right, and I missed this, my original place, so I made the decision to move back. Oh how I've missed This Mama's Heart! Homeschooling and homeschooling with Apraxia will be a major focus here, but I wanted a space where I could write about other topics as well. {If you'd like to see the few posts that I made over there, they can be found at Potomac Learning.}

Which leads me to this post!

Today we saw Luke's allergist for his annual visit. We saw her several times last summer and fall for two different in office food challenges (IOFCs) for peanuts and eggs. Eggs he originally passed, but then went on to have major reactions to baked in eggs at home. Peanuts he failed after the second dose in office. She decided then that we would no longer base IOFCs on RAST (blood test) results because his RAST scores don't appear to match with his reaction. His RAST for peanuts last summer was actually negative, and the RAST for egg was extremely low. We decided to go for a skin prick test (SPT) today to see if an IOFC for either peanuts or egg, or both, would be in our future. The picture below shows his back, with the SPT in progress, about halfway through the test. She also tested for a few tree nuts.

1 - Positive control 2 - Negative control A - Almonds C - Cashews P - Peanuts W - Walnuts E - Egg

The wheals for egg and peanut got pretty big. Generally any wheal over 8mm shows a 95% probability of a food allergy reaction to what is being tested. The wheal on Luke for peanut was 13mm, the wheal for egg was 19mm. In the fall of 2010 the wheal for egg on Luke was 17mm. This was our first SPT for any food other than egg. Initially all tree nuts were negative. As we spoke with the allergist though, a small wheal popped up for cashews.  Because of this, we are continuing to avoid cashews (and pistachios as they are cross reactive), but his allergist wants us to introduce the tree nuts that he passed. We're to start in small amounts, and do just one at a time. We also have to be careful that any tree nuts he is given do not have cross contamination with peanuts, cashews or pistachios.

 I will be very nervous about introducing tree nuts to him, but I am excited that this will open up some new food choices for our family.

One more picture of his egg wheal. She considers this a major reaction. The worst part is that this makes her feel that he will probably not outgrow his egg allergy. This of course made me extremely sad.

1 comment:

  1. Melinda, welcome back!

    And sorry he had to go through the scratch tests again :-(