In a nutshell, the answer to Hannah's high bs yesterday at her track meet....

High intensity competitive sports can cause a rise in bs in persons with well controlled diabetes.

Running in a race (high intensity exercise) can cause hyperglycemia (550) in a type 1 diabetic. The information says that correcting the sugar is probably not the best thing to do after something like this happens. The correction dose of insulin will take effect at the same time that she has increased insulin sensivity (that means that her body doesn't need as much insulin as usual because of the running) and thus can lead to hypoglycemia. Maybe next time cut the dose in half that the pump says.

So chalk this up to another learning experience in the "day and life" of a diabetic child....