The 668 area code is NOT a valid area code. This area code is NOT officially assigned to a known Numbering Plan Area (NPA).The 668 area code is not assigned to a city/state location.In most cases with invalid area codes like 668, tend to be used by phone numbers from telemarketing companies.he 668 area code is NOT a valid area code. This area code is NOT officially assigned to a known Numbering Plan Area (NPA).
Fasting glucose (fasting blood glucose, FBG) â this test measures the level of glucose in the blood after fasting for at least 8 hours. 2-hour glucose tolerance test (GTT) â for this test, the person has a fasting glucose test done (see above), then drinks a 75-gram glucose drink. Another blood sample is drawn 2 hours after the glucose drink. This protocol challenges the person's body to process the glucose.
2 Tests to Measure Blood Sugar Control . To control your diabetes, you must know your blood sugar numbers. Testing your blood sugar is the only way to know whether your blood sugar is too high, too low, or just right. Two different tests to measure your blood sugar: 1. The hemoglobin A1c test (pronounced he-me-glo-bin