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Doctor insights on: 2 Hour Glucose Tolerance Test Interpretation

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Fasting glucose 85. then GTT hour 1glucose 84, hour 2 glucose 94. what would cause this odd response?

Fasting glucose 85. then GTT hour 1glucose 84, hour 2 glucose 94. what would cause this odd response?

Normal variability: So for that test, you basically get a dose of glucose to see if your blood sugar remains elevated. Our bodies respond very quickly to glucose, meaning that it gets taken up by our muscles and liver almost immediately after it enters the blood stream. Our body's "thermostat" is set to keep the blood sugar level between 70-99. Over 100 indicates a problem with glucose metabolism. Yours is normal. ...Read more

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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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Have GTT test. Blood glucose normal. O hour and 1 hour urine glucose negative but 2 hour urine glucose is trace. False positive or renal glycosuria?

Have GTT test. Blood glucose normal. O hour and 1 hour urine glucose negative but 2 hour urine glucose is trace. False positive or renal glycosuria?

Urine glucose: If your GTT is OK and the 2 hour urine only a trace high, I don't think you have anything to worry about. That said, be careful with your food and drink intake. ...Read more

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My fasting plasma glucose 162, 1hour post glucose 271, 2 hour post glucose 261, 31 weeks of pregnancy gdm detectd?

My fasting plasma glucose 162, 1hour post glucose 271, 2 hour post glucose 261, 31 weeks of pregnancy gdm detectd?

Yes!: Yes you most certainly have impaired glucose metabolism and gestational diabetes. This requires prescription medication, strict diet modification and exercise asap to prevent pregnancy complications. Good luck. ...Read more

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I am prediabetic with higher blood sugar and insulin levels. L just had a 3 hour glucose tolerance test. Fasting sugar is 63, insulin is 2. Meaning?

I am prediabetic with higher blood sugar and insulin levels. L just had a 3 hour glucose tolerance test. Fasting sugar is 63, insulin is 2. Meaning?

Doesn't matter: The numbers aren't really important or valuable. If you're overweight and have high glucose (particularly with a positive family history) you need education, diet, exercise, weight reductio and maybe medication -- not just a diagnosis. The diagnosis doesn't help you get healthier. ...Read more

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Can you tell me about fasting plasma glucose 162, 1hour post glucose 271, 2 hour post glucose 261, 31 weeks of pregnancy gdm detectd?

That's diabetes: Hi. Yes, Ma'am, that's diabetes, by both fasting glucose and OGTT criteria! Your OB will get you on insulin (or refer you to someone for that). Control your diabetes for your sake and your baby's. Good luck! ...Read more

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What's a 3 hour oral glucose tolerance test (ogtt) for diabetes?

What's a 3 hour oral glucose tolerance test (ogtt) for diabetes?

Gestational diabetes: A test for how you respond to known sugar loads in pregnancy and whether you are diabetic from pregnancy... If abnormal, may need to make changes in diet or meds. ...Read more

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Random test (5 hours after eating), blood glucose: 77, cholesterol: 155. 2 weeks later Fasting test results: BG:106 cholesterol:199. Accuracy issue?

Random test (5 hours after eating), blood glucose: 77, cholesterol: 155. 2 weeks later Fasting test results: BG:106 cholesterol:199. Accuracy issue?

Methods: Was either of the tests done in a CLIA accredited laboratory? It so, you can rely on that. If one of the tests was done on a Point of Care instrument and the other on a regular analyzer, the latter is more reliable. It is better to have your doctor order the tests and send the samples to a reputable lab. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine. ...Read more

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Random blood sugar test result 375mg/dL repeat test done Fasting Plasma Glucose result 228mg/dL. Am I diabetic?

Random blood sugar test result 375mg/dL repeat test done Fasting Plasma Glucose result 228mg/dL. Am I diabetic?

Yes!: You are def a diabetic. Get a glucose meter and check some fingersticks. Completely NL in the AM fasting is 70-100. 101-125 is borderline, >125 is diabetes. Go see a diabetes doc and get an A1C test. Normal is up to 5.7. Pre-diabetic is 5.7 - 6.4. Diabetes is >6.4. Check out this link from the NIH: http://diabetes.niddk.nih.gov/dm/pubs/A1CTest/A1C_Test_DM_508.pdf. You need diabetic tx! ...Read more

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What oral glucose tolerance test result indicates diabetes?

What oral glucose tolerance test result indicates diabetes?

Unclear question: There is a set of rules for interpreting the results of ogt and it should be done by your doctor. ...Read more

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Non diabetic. 4 recent blood tests. First 2 postprandial, last 2 fasting. Post glucose in 70s, fasting in 90s. Why would glucose be higher b4 food?

Morning glucose: Is due to glucose your liver puts out overnite and inbetween meals so that your sugar stays stable during these times. Also, you won't die of low glucose if fasting. After meal sugar is lower due to Insulin your body puts out to cover the meal. Don't worry, all your numbers are excellent and normal. ...Read more

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What r glucose meter levels that would indicate pre-diabetes, fasting, upon waking? & 2 hrs after a meal?

What r glucose meter levels that would indicate pre-diabetes,  fasting, upon waking? & 2 hrs after a meal?

Blood sugar levels.: For fasting glucose, up to 100 normal, 101-125 prediabetes and 126 and up diabetes. For A1C, up to 5.6% normal, 5.7-6.4% prediabetes, 6.5% and up consistent with diabetes. Blood sugar should be lower than 140 two hours after eating. ...Read more

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High normal fasting gluc and HgA1c. Normal 2 hour post prandial readings. Can fatty liver be causing my "pre-diabetic" state?

High normal fasting gluc and HgA1c.  Normal 2 hour post prandial readings.  Can fatty liver be causing my "pre-diabetic" state?

Pre-diabetic?: Your lab values does not suggest pre-diabetes but pre-diabetic state can cause fatty liver not the other way around. Decrease your carbohydrate intake and eat low fat diet to decrease the risk starting today. It also will help you to decrease the risk of arteriosclerotic cardiovascular disease. Contact me if you have further questions. Hope this helps. ...Read more

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Insulin serum blood test was 57 & standard is < 14. Test was taken when fasting. ?

Insulin serum blood test was 57 & standard is < 14. Test was taken when fasting. ?

High.....: But more info needed to interpret this piece of lab.......Blood sugar, HbA1C, Clinical situation..... ...Read more

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Recently bloodwork for fasting insulin. How is this different that a glucose tolerance test or a fasting glucose test?

Recently bloodwork for fasting insulin. How is this different that a glucose tolerance test or a fasting glucose test?

Different tests: Insulin & glucose are 2 different ways to measure diabetes. Insulin is produced by pancreas to keep sugars under control. We measure glucose to see how well sugars are controlled. Think of glucose as speedometer & Insulin as tachometer (hgba1c is avg trip speed - ask a car nut if this doesn't make sense). Glucose tolerance test requires drinking sugar whereas other 2 tests don't. ...Read more

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How do fasting insulin test and glucose test differ?

Different tests: Insulin & glucose are 2 different ways to measure diabetes. Insulin is produced by pancreas to keep sugars under control. We measure glucose to see how well sugars are controlled. We can measure Insulin to determine how much effort pancreas is making to control sugars. Think of glucose as speedometer & Insulin as tachometer (hgba1c is avg trip speed - ask a car nut if this doesn't make sense). ...Read more

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My ogtt results in the 24th pregnancy week showed: fasting 78mg/dl; 75g glucose, after 1 hour: 97mg/dl, after 2 hours: 154mg/dl. Is it a lab error?

Probably not: Why would you think this a lab error? You need to be followed carefully and the test repeated during the remainder of the pregnancy and after you have delivered. ...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
2,607 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