Hi,
For everyone without diabetes, regardless of what you drank or ate, your blood sugars should stay within a normal limit. The idea that sugary foods and drinks will raise your blood sugars above normal(in people without diabetes or other glucose abnormalities) is false, so it should not matter what your daughter ate or drank before you tested.The only thing to know is: was it fasting or sometime after eating or drinking something.
The value that you got would not be considered diabetic IF after eating or drinking. If it was fasting, then there should be some follow up testing done. Given your daughter's recent symptoms of thirst, I think you should schedule an appointment with her doctor to have a thorough exam and possibly some lab tests done soon.In the meantime make sure she keeps up on her fluids(water is generally best)
Take care.
In re: to your daughters sugar level. What were the circumstances? When had she last eaten? Was she ill? How much water does she drink on a daily basis? Before you noticed she was really thirsty - what was her drinking pattern and WHAT was she drinking? Did she get enough water? Did she usually only drink juice and milk?
Children's BG levels are the same as adults. The ADA and ACE differ on what those should be, however.
Hope all works out well..