How to differentiate between normal, prediabetes or diabetes ?

How to differentiate between Normal, Prediabetes or Diabetes ?

Doctors can determine whether a patient has a normal metabolism, prediabetes or diabetes in one of three different ways:

1- The FPG (fasting plasma glucose) test

– at least 7 mmol/l means diabetes
– between 5.6 and 6.9 mmol/l means prediabetes
– less than 5.6 mmol/l means normal

2- The OGTT (oral glucose tolerance test)

– at least 11.1 mmol/l means diabetes
– between 7.8 and 11.0 mmol/l means prediabetes
– less than 7.8 mmol/l means normal

3- The HbA1C (A1C or glycosylated hemoglobin test) test

– at least 6.5% means diabetes
– between 5.7% and 6.4 % means prediabetes
– less than 5.7% means normal