When fasting the hormone glucagon is stimulated and this increases plasma glucose levels in the body, say Mr. Slinkin. If a patient doesn’t have diabetes, their body will produce insulin to rebalance the increased glucose levels FBS.
However people with diabetes either don’t produce enough insulin to rebalance their blood sugar (typically in type 1 diabetes ) or their body is not able to use the insulin effectively enough (typical of type 2 diabetes), say Doctor Denis.Consequently when blood glucose levels are tested, people with diabetes will have blood sugar levels significantly higher than people who do not have diabetes FBS.
WHAT IS THE FASTING BLOOD SUGAR TEST USED FOR?
The fasting blood sugar test is also used to test the effectiveness of different medication or dietary changes on people already diagnosed as diabetic FBS.