subject: Common methods used for Diabetes diagnosis [print this page] If you are free from diabetes, the glucose levels alleviate instantaneously, and then they drastically drop back to normal, since the glucose triggers the body to generate some insulin, whose function is to lower the level of blood glucose in the body. The diabetic person will experience the rise just as the non diabetic person will, but their levels will come down much slower than the normal person since their bodies are either deficient in insulin production, or the amounts produced just aren't as much as required to control the rapid rise in blood sugar levels. The glucose tolerant test usually has some common findings, which can be termed as the basis for judging whether someone has diabetes or not. All the same, there are so many ways of dealing with the news that you have diabetes, and one does not have to despair, but seek professional help.