what is a normal blood sugar reading

A normal blood sugar reading depends on the type of test being done. For a fasting blood glucose test, a level between 70 and 100 mg/dL (3.9 and 5.6 mmol/L) is considered normal. For a random blood glucose test, a level of 200 mg/dL (11.1 mmol/L) or higher suggests diabetes. For a glucose tolerance test, a blood sugar level of 140 mg/dL or lower is considered normal. An A1C test measures your average blood sugar level over the past 2 or 3 months. An A1C below 5.7% is normal. It is important to note that normal value ranges may vary slightly among different laboratories, and some labs use different measurements or may test different specimens. If you have concerns about your blood sugar levels, it is best to talk to your healthcare provider about the meaning of your specific test results.