Blood tests measure the level of antibodies, called immunogloblin E (IgE), a body makes to a particular food. But having IgE antibodies doesn't mean that a person will actually have an allergic symptom when they encounter it. Skin-prick tests are slightly more predictive, but there, too, a red wheal in response to a skin prick doesn't necessarily mean that a child will have an actual allergic reaction to that food.So what does this mean? That in the end, doctors recommend a medically-monitored food challenge following allergy tests. You can do your part by listening to your body as you navigate through your challenge foods, and work with your allergist closely.
Tuesday, January 26, 2010
Food Allergy Tests add confusion #foodallergies
My pal Allergic Girl alerted me to an important article that ran in the WSJ. It's great that food allergies are making national news...the more people are aware, the better!