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.
What the normal glucose reading should be? How to keep my blood sugar levels at a healthy range? It is true that when you know your blood sugar levels will help you get better control of diabetes. There are several tests you may undergo to check your blood glucose level if itâs in normal range or not. Basically, the normal blood sugar reading should be as following (according to ADA - American Diabetes Association for adult): Blood glucose before meal: 70 â 130 mg/dl. Blood glucose 2 hours after meal: <180 mg/dl.