Recent researches into diabetes and impaired glucose metabolism has created a new array terminology And definitions relating to glucose metabolism in clinical practice. To study the role Glucose Tolerance Test (OGTT) in diagnosis of different hyperglycemic classess. in diwaniya. Four hundred patients were studied for the existance of diabetic state using the Oral Glucose Tolerance Test. Only (37.5%) patients had frank diabetic state after 2h OGTT. (50%) patients ranging between Impaired Fasting Glucose ( IFG), and Impaired Glucose Tolerance Test. (12.5%), patients had no diabetes. Overlap between results makes these readings not applicable for all population,therfore using 2H OGTT..is warranted.
