Blood Glucose (BG) level is the amount of glucose in the blood. Glucose is a sugar that comes from the foods we eat, and it's also formed and stored inside the body. It's the main source of energy for the cells of our body, and it's carried to each cell through the bloodstream.
People diagnosed with sugar diabetes have to regularly monitor their BG levels.
Symptoms of low blood sugar, such as sweating, shakiness, extreme hunger, nausea, or dizziness. Symptoms of high blood sugar, such as increased thirst, increased urination, fatigue, or light-headedness. Symptoms occur more often or are more severe.
Normal blood sugar ranges by age are:
Adults: From 90 to 130 mg/dL (5.0 to 7.2 mmol/L)
Children, 13 to 19 years old: From 90 to 130 mg/dL (5.0 to 7.2 mmol/L)
Children, 6 to 12 years old: From 90 to 180 mg/dL (5.0 to 10.0 mmol/L)
Children under 6 years old: From 100 to 180 mg/dL (5.5 to 10.0 mmol/L)
The expected values for normal fasting blood glucose concentration are between 70 mg/dL (3.9 mmol/L) and 100 mg/dL (5.6 mmol/L).
When fasting blood glucose is between 100 to 125 mg/dL (5.6 to 6.9 mmol/L) changes in lifestyle and monitoring glycemia are recommended.