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What Is Mean Blood Glucose?

by
author image Dylan de Castro
A health and fitness journalist, Dylan de Castro began writing professionally in 2002. He is currently completing his Bachelor of Arts degree in communication science at the University of South Africa.
What Is Mean Blood Glucose?
A person's hands testing their blood glucose levels. Photo Credit Piotr Adamowicz/iStock/Getty Images

Maintaining a mean blood glucose level within a normal range is essential to your continued good health. In addition to facilitating the management of your sugar levels, the monitoring of mean blood glucose also plays an important role in the prevention and diagnosis of any disease, particularly diabetes mellitus.

Function

Glucose is the body's primary source of energy. It comes from carbohydrates found mainly in certain foods, such as bread, rice, pasta and candy; fruits, especially oranges, pineapple and grapefruit; as well as vegetables, like potato and squash. Once carbohydrates are digested by the body, glucose is released into the bloodstream and absorbed by the cells via insulin, a hormone produced by the pancreas.

Identification

A blood test may be administered to measure the amount of glucose in your bloodstream -- either through a home test kit or medical laboratory test. Your mean blood glucose refers to the average level of glucose present in your blood and generally reads between 60 and 110 mg per deciliter or lower in healthy adults.

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The Facts

An excessively high mean blood glucose level, or hyperglycemia, may be an indicator of hyperthyroidism, pancreatitis, pancreatic cancer, acromegaly, Cushing's syndrome, pheochromocytoma, glucagonoma or diabetes. Conversely, an unusually low level, or hypoglycemia, may indicate hypopituitarism, hypothyroidism or insulinoma. Although readings are generally accurate, results may vary, depending on the home test kit used or the laboratory in which the test is performed. It is therefore advised that you consult your doctor to clarify the significance of your specific test results.

Considerations

What Is Mean Blood Glucose?
Testing is the only sure way to know your blood sugar levels. Photo Credit blood testing image by John Keith from Fotolia.com

An abnormal blood glucose level does not automatically imply that you have a medical condition. It is normal for levels to fluctuate throughout the course of the day, especially after food consumption. Thus, to obtain a mean average reading, it is advised that the home test be performed two to four times a day, either before meals or two hours after eating. Alternatively, a laboratory test may provide more accurate results. Stress, illness, hormones, medication and alcohol may also lead to temporary fluctuations in blood glucose levels and should be taken into consideration when tested.

Significance

Moderately elevated blood glucose levels may present a threat to your health even in the absence of diabetes in that they may contribute to risk factors associated with heart attack, obesity and cancer. Thus, maintaining a safe mean blood glucose level through regular exercise and a healthy, balanced diet is vital for disease prevention and longevity.

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References

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