Bloodwork Results

Well, the geneticist finally got back to us about the results from Payton's bloodwork. She said everything looked fine, except that her CO2 levels were a little low. So, she wants to do some further testing and we aren't sure yet what that entails or what it means. I have heard that this can be "normal" for people with Down syndrome to have low CO2 levels, but wouldn't the geneticist know that if it were true? Not sure....