How do blood glucose testing and hemoglobin A1c testing differ?
A finger-stick test using a blood glucose meter measures the level of sugar in the blood at the time of the test. The A1c test measures the average blood sugar over a 90-day period. A1c can be sampled at any time during the day. The blood glucose test, on the other hand, can only be taken at specific times, usually just before or after meals. These two tests together help people with diabetes see how food, physical activity, and diabetes medicines affect their blood sugar. A correlation of test results helps patients and health care professionals better manage the disease. All diabetics need regular A1c testing. Most people with diabetes also need to self-monitor their blood glucose to get a complete picture of their blood sugar control. Always consult your health care professional before adjusting any of your medications.
