What letter is used in medicine to denote blood sugar?

Blood glucose levels are usually represented by the English abbreviation "BG" (Blood Glucose). However, in clinical laboratory reports, blood glucose measurement results are often labeled directly as "Glucose" or its symbol "Glu".

Fasting blood glucose levels are commonly denoted as "FBG" or "FPG," whereas blood glucose levels two hours after a meal are indicated by "PBG." In diabetes management and research literature, terms such as "FPG" (Fasting Plasma Glucose) and "2hPG" (2-hour Postprandial Glucose) are frequently used to more precisely describe blood glucose levels under different conditions.

Additionally, "NGR" stands for normal glucose regulation, "IFG" for impaired fasting glucose, "IGT" for impaired glucose tolerance, "DM" for diabetes mellitus, "DKA" for diabetic ketoacidosis, "HHS" for hyperglycemic hyperosmolar state, "hypoglycemia" for low blood sugar, and "OGTT" for oral glucose tolerance test.