The blood glucose level is commonly expressed as

Blood glucose level, also known as blood sugar concentration, is the amount of glucose present in the blood of humans and other animals. In clinical medicine, it is most commonly expressed in milligrams per decilitre (mg/dL). For example, a normal fasting blood glucose level is typically between 70 and 100 mg/dL.

• MM of Hg: This unit (millimetres of mercury) is used to measure blood pressure, not glucose.
• Parts per million (ppm): This is used for very low concentrations, such as pollutants in air or water.
• Gram per litre (g/L): While a valid unit of concentration, it is not the standard convention for reporting blood glucose levels in medical diagnostics.

In some countries, millimoles per litre (mmol/L) is also used as a standard unit.