My 2.5 year old daughter just tested positive for peanut allergies with a RAST level of >100. We only had the test run as a precaution, not because we anticipated this result (she has eczema, so we thought we were simply being prudent).

I am struggling to make sense of this, since she has had peanut butter at least 4 times in her life and nothing happened - no hives, no vomiting, no wheezing, etc. On one occasion she threw up while eating peanut butter on apple slices, but I wasn't sure if it was the peanut butter or the fact that she was having trouble with the skins I left on the apples (and has a tendency to take enormous bites without chewing).

From what I've read, a Level 6 RAST test correlates with a 100% chance of a reaction. Moreover, the allergist we met with today said that, based upon my daughter's IgE, we could expect any reaction to be severe. Please, please clarify this apparent discepancy between test and history for me.