In general, it is recommended that you fast (nothing to eat or drink except water) for at least 8 hours before having a blood glucose test. For people with diabetes, glucose levels are often checked both while fasting and after meals to provide the best control of diabetes.
https://labtestsonline.org/understanding/analytes/glucose/tab/glance
The blood glucose test may be used to: 1  Detect high blood glucose (hyperglycemia) and low blood glucose (hypoglycemia) 2  Screen for diabetes in people who are at risk before signs and symptoms are apparent; in some cases, there may be no early signs or symptoms of diabetes.
https://labtestsonline.org/understanding/analytes/glucose/tab/test
Glucose provides a source of energy for the human body. Experts from Georgia State University say glucose is the most important simple sugar used for human metabolism.
https://www.reference.com/science/function-glucose-human-body-e362e2a7723051c9
Blood glucose monitoring. Blood glucose monitoring is a way of testing the concentration of glucose in the blood (glycemia). Particularly important in the care of diabetes mellitus, a blood glucose test is performed by piercing the skin (typically, on the finger) to draw blood, then applying the blood to a chemically active disposable 'test-strip'.
https://en.wikipedia.org/wiki/Blood_glucose_monitoring
In a person with signs and symptoms of diabetes or hyperglycemia, a non-fasting glucose level (random blood sample) that is equal to or greater than 200 mg/dL (11.1 mmol/L) indicates diabetes. The following information summarizes the meaning of other test results.
https://labtestsonline.org/understanding/analytes/glucose/tab/test
Sugar has a bad reputation, but there is one type of sugar, called glucose, that your body needs to function. Glucose is a monosaccharide or single sugar. When you eat a carbohydrate, like a piece of bread or bowl of cereal, your body breaks the food down into small molecules, including glucose, that your body can absorb. Glucose enters the bloodstream and travels to every part of the body to fulfill its essential purpose.
http://www.livestrong.com/article/201765-what-is-the-main-function-of-glucose/
(May 2014) Blood glucose monitoring is a way of testing the concentration of glucose in the blood (glycemia). Particularly important in the care of diabetes mellitus, a blood glucose test is performed by piercing the skin (typically, on the finger) to draw blood, then applying the blood to a chemically active disposable 'test-strip'.
https://en.wikipedia.org/wiki/Blood_glucose_monitoring
During glycolysis, glucose is converted to pyruvic acid. Every molecule of glucose used during this stage produces two ATP, according to the IUPUI Department of Biology. The pyruvic acid is converted to a substance called acetyl CoA during the transition reaction.
https://www.reference.com/science/function-glucose-human-body-e362e2a7723051c9
Why Get Tested? To determine if your blood glucose level is within a healthy range; to screen for and diagnose diabetes and prediabetes and to monitor for high blood glucose (hyperglycemia) or low blood glucose (hypoglycemia); to check for glucose in your urine.
https://labtestsonline.org/understanding/analytes/glucose/tab/glance
The human body converts carbohydrates into glucose. Carbohydrates are found in foods such as pasta, fruit, rice, vegetables and baked goods. In healthy people, a hormone called insulin helps glucose enter the cells. People with diabetes do not make insulin or are unable to use insulin to carry glucose into their cells.
https://www.reference.com/science/function-glucose-human-body-e362e2a7723051c9
what is purpose of glucose
The purpose of glucose is to provide a source of energy for the human body. Glucose provides a source of energy for the human body.