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Doctor insights on: Normal Glucose Tolerance Test Results

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Can you be diagnosed diabetic from glucose tolerance test results?

Can you be diagnosed diabetic from glucose tolerance test results?

Yes: A fasting blood sugar of at least 126 mg/dl or 2-hour post prandial blood sugar of at least 200 mg/dl is diagnostic of diabetes. ...Read more

Tolerance (Definition)

When one takes a drug, such as heroin or alcohol, repeatedly, 'tolerance' develops because more of the drug is needed to give the same effect on the body/brain; e.g. Liver enzymes r stimulated to metabolize the drug faster and faster. There may be a strong genetic predisposition to addiction, some studies suggesting that 1 of 10 people will become dependent on alcohol or some ...Read more


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My glucose tolerance test results are: fasting: 100 mg/dl, 1hr: 148mg/dl, 2hr: 128 mg/dl. My hbc1a : 5.7. I am concerned....Am i prediabetes?

My glucose tolerance test results are:
fasting: 100 mg/dl, 1hr: 148mg/dl, 2hr: 128 mg/dl. My hbc1a : 5.7.
I am concerned....Am i prediabetes?

Probably not: The fasting glucose of 100 and hba1c of 5.7 are borderline high, the other tests are normal. Diabetes is defined by fasting glucose above 125 or post prandial glucose above 200, or hba1c above 6.5%. People with prediabetes will typically also have triglycerides above 150, HDL cholesterol under 50 in a female, hypertension, and obesity. ...Read more

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My glucose tolerance test results : fasting = 105; 1 hr. post swallow = 188; 2 hr. post = 158; 3 hr. post = 55; 4 hr. post = 57; a paradox? A1c = 5.4%

My glucose tolerance test results : fasting = 105; 1 hr. post swallow = 188; 2 hr. post = 158; 3 hr. post = 55; 4 hr. post = 57; a paradox? A1c = 5.4%

IFG & IGT: Hi. You meet criteria for pre-diabetes on the basis of impaired fasting glucose (IFG) and impaired glucose tolerance (IGT). Your A1c is not yet abnormal, but you see how your glucose goes into the 50's a few hours after a challenge; that offsets the A1c, making it a less sensitive test for diabetes. Eat healthy, exercise regularly, and talk with your doc about possible medications to prevent diabe ...Read more

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Non diabetic normal glucose tolerance test A1c between 4.9 to 5.6 but I have dawn phenomenon every morning if i test at 9 hrs fasting why?

Unclear question: What do you mean by "dawn phenomenon"? You are obviously under the care of a doctor to have had glucose tolerance test done, please discuss the issue with your doctor who knows the details of your health. ...Read more

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Fail first glucose tolerance test repeated with a fastied 3hour gluclose tolerance with 100mg oral. 1st hr normal 2nd and 3rd is above normal range?

Need more info: Please note that lab results need to be interpreted in the total clinical context and the doctor who ordered the tests is in the best position to do that. Actual values are needed for evaluation and related circumstances, e.g. Are you pregnant? What is your hb a1c level, do you have symptoms of diabetes? ...Read more

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My glucose tolerance test result was 10.8. What should I be doing.

My glucose tolerance test result was 10.8. What should I be doing.

Probably diabetic: A level of 10.8 during the test is just below diagnostic for diabetes. You should do a hba1c, but you have, at the least, impaired glucose tolerance. You should be following a low concentrated sweets diet. If overweight, you need to lose weight. Exercise. You may also need medication based on other lab results. ...Read more

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Did 5 hr glucose tolerance test dint know results but do know at 5 hrs my sugar was 74 is that a giod sign?

Normal: This is a normal number. What were you screening for? This is not generally a recommended test for screening for diabetes. It is not the gold standard for screening for hypoglycemia either. ...Read more

Blood Sugar (Definition)

The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. The body naturally tightly regulates blood glucose levels as a part of metabolic homeostasis. Glucose is the primary source of energy for the body's cells, and blood lipids (in the form of fats and oils) are primarily ...Read more


Dr. Cayce Jehaimi
2,587 doctors shared insights

Glucose (Definition)

Glucose is the basic sugar molecule and the source of energy throughout the living kingdom. We are programmed to easily detect it by taste in our foods as it is desirable but can be overdone with the modern diet. It gets out of control ...Read more