Diagnosis of Diabetes

Speak with your doctor and ask him or her to test you for diabetes using one of the following tests. The amount of glucose (sugar) in your blood is measured in mmol/L.

Fasting blood glucose

This test checks your fasting blood glucose levels. Fasting means after not having anything to eat or drink (except water) for at least 8 hours before the test. This test is usually done first thing in the morning, before breakfast. You must not eat or drink anything except water for at least eight hours before this test. A test result of 7.0 mmol/L or greater indicates diabetes.

Random blood glucose

This test may be done at any time, regardless of when you last ate. A test result of 11.0 mmol/L or greater, plus symptoms of diabetes, indicates diabetes.

HbA1C Test

The HbA1C test measures your average blood glucose for the past 2 to 3 months. This test may be done at any time, regardless of when you last ate. A test result of 6.5 % or greater (in adults) and in the absence of factors that affect the accuracy of the HbA1C indicates diabetes.

Oral glucose tolerance test

You will be given a special sweetened drink prior to this blood test. A test result of 11.1 mmol/L or greater taken two hours after having the sweet drink indicates diabetes. A second test must be done in all cases (except if you have acute signs and symptoms). Once diabetes has been diagnosed, ask your doctor to refer you for diabetes education. Diabetics Association of Zimbabwe also has many resources to help you understand diabetes better and live a long and healthy life.