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Results for the 2-hour glucose level are interpreted as follows: Normal: Less than 140 mg/dL. Prediabetes: 140 to 199 mg/dL (impaired glucose tolerance) Diabetes: 200 mg/dL or higher on...
In general, providers use the following ranges for the two-hour glucose tolerance test: Normal: Under 140 mg/dL. Prediabetes: 140 to 199 mg/dL. Diabetes: At or over 200 mg/dL. For gestational diabetes and other conditions, the ranges and timing intervals may be different.
The 2-hour plasma glucose level of 140-199 mg/dL indicates impaired glucose tolerance. The 2-hour plasma glucose level ≥200 mg/dL indicates diabetes. For a diagnosis to be made, the test must be repeated on another day shortly afterward, yielding similar results.
A blood sugar level below 140 mg/dL (7.8 mmol/L) usually is thought to be within the standard range for the test. But this may vary by clinic or lab. If your blood sugar level is higher than expected, your healthcare professional likely will recommend the three-hour test. If you need the follow-up three-hour test:
The OGTT is a two-hour test that checks your blood glucose levels before and two hours after you drink a special sweet drink. It tells the doctor how your body processes sugar. Diabetes is diagnosed at two-hour blood glucose of greater than or equal to 200 mg/dl. Result. Oral Glucose Tolerance Test (OGTT)
The normal reference ranges for a three-hour oral glucose tolerance test are: Normal in a fasted state: Less than 95 mg/dL Normal after one hour: Less than 180 mg/dL
The glucose tolerance test (GTT, not to be confused with GGT test) is a medical test in which glucose is given and blood samples taken afterward to determine how quickly it is cleared from the blood. [ 1 ] .
Glucose tolerance test normal range. The normal range for blood glucose is 139 mg/dL or lower. If your level is between 140 mg/dL and 199 mg/dL, that's a sign your glucose tolerance is...
2 hours -- This value is used to make the diagnosis of diabetes. Less than 140 mg/dL (7.8 mmol/L) is normal. From 140 mg/dL to 199 mg/dL (7.8 to 11.1 mmol/L) is considered impaired glucose tolerance. A level of 200 mg/dL (11.1mmol/L) or higher is diagnostic of diabetes.
Within 2 hours of eating, your insulin and blood glucose levels should return to normal. If your blood glucose levels remain high, you may have diabetes. Why do I need this test? You may need this test if your healthcare provider wants to see if you have diabetes or another insulin-related disorder, especially if you have symptoms such as: