I'm curious about how you've handled her math struggles. Three years is a long time to be on a downward spiral. If I were you I'd be looking for a tutor. Regardless of whether she has a learning issue, she'll need help bringing those scores up. Maybe while you're waiting for test results you can find her a tutor or tutor center.
And I really feel for your daughter. One of my boys is 2E with dyslexia and I can't imagine how he would feel if he were shamed for his disability. Crushing. Hope you see your daughter soon and can give her the love and encouragement she needs.
