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.
Report Abuse. It is diabetes.some patients will use testtube to find it. The blood sugar level is the amount of glucose (sugar) in the blood. It is also known as serum glucose level. It is expressed as millimoles per litre (mmol/l).Normally, blood glucose levels stay within narrow limits throughout the day: 4 to 8mmol/l.But they are higher after meals and usually lowest in the morning.eport Abuse. It is diabetes.some patients will use testtube to find it. The blood sugar level is the amount of glucose (sugar) in the blood. It is also known as serum glucose level. It is expressed as millimoles per litre (mmol/l).