My daughter is 11, and tested with a positive ANA when she was 9. (Her ANA was just barely positive.) She feels sick often, has achy joints often, and for a while was getting chronic sore throats. I took her to see my rheumy, and he assured me that her positive ANA was just a remnant of my lupus from when I was pregnant with her; not actual lupus.
I agree with Barbara Lee, make a journal of her symptoms and take them with you to her appointment. It may turn out that it's a false positive. If not, we are all here to help you and your daughter through this.
I won't tell you not to worry. That's just silly. I cried when the doctor told me my daughter tested positive. Our kids are our lives, and worrying comes with the territory. Try to stay positive, and you can always ask the doctors office to put you on a list for cancelations so you can get in sooner.
Good luck to you and your daughter. (((hugs)))
dix: lupus sle Jan. '99, hypo-thyroid Mar. '06
rx: pred. 5mg/day, plaquenil 200mg/day, levothyroxine .112mg/day, premarin .45mg/day, methotrexate 7.5mg/week, folic acid 1mg/day
Also a wife and mother of three.