You will not develop type 2 diabetes automatically if you have prediabetes. An OGTT two-hour blood glucose of 140–199 mg/dl.If you have prediabetes, you should be checked for type 2 diabetes every one to two years. You usually find out that you have prediabetes when being tested for diabetes. Some people with prediabetes may have some of the symptoms of diabetes or even problems from diabetes already. There are no clear symptoms of prediabetes, so you may have it and not know it. This condition puts you at a higher risk for developing type 2 diabetes and cardiovascular disease. Diabetes is diagnosed at blood glucose of greater than or equal to 200 mg/dlīefore people develop type 2 diabetes, they almost always have prediabetes-blood glucose levels that are higher than normal but not yet high enough to be diagnosed as diabetes.ĭoctors sometimes refer to prediabetes as impaired glucose tolerance (IGT) or impaired fasting glucose (IFG), depending on what test was used when it was detected.This test is a blood check at any time of the day when you have severe diabetes symptoms. Random (also called Casual) Plasma Glucose Test Diabetes is diagnosed at two-hour blood glucose of greater than or equal to 200 mg/dl.It tells the doctor how your body processes sugar. The OGTT is a two-hour test that checks your blood glucose levels before and two hours after you drink a special sweet drink. Diabetes is diagnosed at fasting blood glucose of greater than or equal to 126 mg/dl.This test is usually done first thing in the morning, before breakfast. Fasting means after not having anything to eat or drink (except water) for at least 8 hours before the test. This test checks your fasting blood glucose levels. Diabetes is diagnosed at an A1C of greater than or equal to 6.5%.The advantages of being diagnosed this way are that you don't have to fast or drink anything. The A1C test measures your average blood glucose for the past two to three months.
If your doctor determines that your blood glucose (blood sugar) level is very high, or if you have classic symptoms of high blood glucose in addition to one positive test, your doctor may not require a second test to diagnose diabetes. Testing should be carried out in a health care setting (such as your doctor’s office or a lab). Each way usually needs to be repeated on a second day to diagnose diabetes. There are several ways to diagnose diabetes.
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