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Doctor insights on: High Fasting Blood Glucose

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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


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Is it possible to have high fasting blood glucose but normal urine glucose in a diabetic patient?

Is it possible to have high fasting blood glucose but normal urine glucose in a diabetic patient?

Yes,: In order that glucose should show up in the urine, the blood levels have ti be higher than 190 mg%. This with a normal functioning kidneys of course. ...Read more

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I'm obese, metabolic and have high fasting blood glucose after eating only vegies and lean meat for over a week, how can loose this weight?

I'm obese, metabolic and have high fasting blood glucose after eating only vegies and lean meat for over a week, how can loose this weight?

Low calorie: Watch your calories. Avoid processed foods with unnatural ingredients. No fast food, and be careful if you eat out as most restaurants have high-calorie foods. Find filling, low calorie foods like whole wheat. Also pay attention to what you drink-soda, alcohol, etc can have a lot of calories. Exercise regularly. To lose weight you need to burn more calories than you consume. ...Read more

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Is higher fasting blood glucose early in the morning normal? I've had scores a bit high early in the morning, 102-103. But later they're under 90.

Is higher fasting blood glucose early in the morning normal? I've had scores a bit high early in the morning, 102-103. But later they're under 90.

Dawn phenomenon: I'm going to assume you're a diabetic under care. This sounds like the "dawn phenomenon"; the hormones you make late in sleep will tend to raise blood glucose a bit. By the way, it sounds like you have good control and you should be proud. ...Read more

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Could fasting for 15 hrs make my blood glucose levels more elevated than normal?

Could fasting for 15 hrs make my blood glucose levels more elevated than normal?

Blood glucose: On the contrary, if you fast for 15 hours your blood glucose level is more likely to be lower. Good luck. ...Read more

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What does it mean if your plasma glucose levels are only high on a fasting blood test?

What does it mean if your plasma glucose levels are only high on a fasting blood test?

Unclear question: Did you have a glucose tolerance test and only the fasting glucose was high? How high was it? Fasting plasma glucose is 100-125 it is pre-diabetes and 126 or higher, if noted on two occasions is diagnostic of diabetes. ...Read more

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According to quest diagnostics, fasting blood glucose should be 65-99. Mine is 127, is this too high for a diabetic?

According to quest diagnostics, fasting blood glucose should be 65-99. Mine is 127, is this too high for a diabetic?

Probably: Your lifestyle, compliance, diet, metabolic needs, and stress all play into how "tight" you can control your sugar. Ideally, your diabetic sugar control should approximate a non-diabetic's. You are allowed "bad days, " though--if your hgba1c is in-range, then an occasional abnl--even on test day--is ok. Talk w/your doctor. ...Read more

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What to do if I had a fasting blood glucose test and have been told it was high, I now have to have a hba1c on tuesday?

What to do if I had a fasting blood glucose test and have been told it was high, I now have to have a hba1c on tuesday?

HbA1c: This is a blood test that tells the doctor how well your blood sugar has been controlled over the last 3 months. If you had a high fasting sugar and your A1c is very high then you will know that you have diabetes and it is not well-controlled. If you have a low / normal A1c then you probably just starting to develop diabetes and can treat it with diet and exercise first. ...Read more

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I go for a semi-annual checkup and had an overnight fasting blood glucose high of 102. I am labeled a high diabetic and puzzled (?).

102: A bit high but not too bad.
Check your blood sugar before breakfast - check again before lunch. If your blood sugar is higher before lunch your doctor should prescribe some diabetes medication for you. ...Read more

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Worried sick. Just had blood work done for routine physical. Glucose fasting was 98. I've never been that high. My doctor is not concerned.?

Worried sick. Just had blood work done for routine physical. Glucose fasting was 98. I've never been that high. My doctor is not concerned.?

It is normal: A fasting sugar less than 100 is considered normal. If you are concerned about getting diabetes then do all that you can to avoid it. Here are some suggestions: maintain a normal weight, exercise daily, eat a low carb diet with lots of fresh fruits and vegetables and whole grains. ...Read more

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Blood protein low 5.8; lymphs high 47% rel/3.8 abs. Fasting glucose 95; non is only 77. Past high liver #s now normal. Rbc ok, stools neg for infect. Eating plenty. Persistent bloody stool. Causes?

Blood protein low 5.8; lymphs high 47% rel/3.8 abs. Fasting glucose 95; non is only 77. Past high liver #s now normal. Rbc ok, stools neg for infect. Eating plenty. Persistent bloody stool. Causes?

Need colonoscopy: When there is persistent bleeding into the toiler a colonoscopy to look inside and take biopsies is critical for appropriate diagnosis and treatment. Inflammatory bowel disease is a consideration and that is the way to diagnose it. ...Read more

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My child had bad stomach flu and her glucose blood level was 135. Can being sick make it high? Is. 135 a concern after not eating and throwing up?

My child had bad stomach flu and her glucose blood level was 135. Can being sick make it high? Is. 135 a concern after not eating and throwing up?

Normal body response: When you are sick, your body secretes certain hormones in response to the stress on the body, including steroids. This will cause a rise in the blood glucose, even if the child hasn't been eating. It is totally normal and expected. She is not diabetic and nothing to worry about. ...Read more

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What's a good target range for fasting blood glucose?

What's a good target range for fasting blood glucose?

Ranges: Normal blood sugars run under 100 fasting. Anything over 128 is considered diabetes. Between 100- 120 is considered fairly reasonable control for most diabetics. Oftentimes people on oral medication are controlled better than people on insulin. Only your doctor can give you the range that is right for you because there are many factors involved on our target selection. ...Read more

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What is the normal whole fasting blood glucose? Thank you.

Fasting sugar: A normal fasting sugar level is less than 100 mg/dl. 100-125 is considered pre-diabetes if persistent. The diagnosis is made on blood test and not through a home glucometer. ...Read more

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What is the range of normal "fasting" whole blood glucose? May I also get your reference? Thanks!

What is the range of normal "fasting" whole blood glucose? May I also get your reference? Thanks!

74-106: That's "technicaliy" the "normal range", but only for blood drawn from a vein in the fasting state. After meal glucoses and hba1dc determination are also important if you're concerned re: diagnosis of diabetes. Don't be worried if your glucose is slightly lower than the above range. Be aware that what is considered "normal" changes from time to time and has been slowly lowering over years. ...Read more

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My fasting blood glucose has recently gone up to 6.6mmol. I've had reactive hypo for 11 years. Should I be concerned?

Yes, 11 years: Ago your so-called "hypoglycemia" was a return to normal glucose after a meal when you were obese and Insulin resistant. That has worsened with age (and probably with further weight gain) and you've gone from from Insulin resistance into prediabetes and probably full diabetes. You need to eat less and exercise more and may need medication. See your doctor. ...Read more

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Will 4 grams of sugar affect fasting blood glucose?

Do you have diabetes: If you have diabetes the more sugar you take the higher your blood sugar is likely to be.

If you don't have diabetes it is likely that 4 grams of sugar won't affect your diabetes.

Why are you taking 4 grams of sugar?
Are you really weighing it? ...Read more

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Recently blood glucose levels for non fasting males?

Normal fasting: 65-105 when drawn out of a vein while fasting. Various authorities have different "normal" levels. There are, however, no exact cut-offs, it's all a continuium. Finger sticks are not accurate enough for diagnosis. Two hour post meal should be less than 130-140, and any glucose >200 at any time suggests diabetes. An a1c >6% is also suggestive and needs further evaluation. See diabetes. Org for info. ...Read more

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What does a (fasting) blood glucose level of 127 mean?

What does a (fasting) blood glucose level of 127 mean?

Family practice: You may be pre diabetic. A 2 hr after eating blood sugar level is a better test for diabetes. An even better test would be hga1c level. That will show how your bs has been over a 3 month period. Normal level is less than 6.9. ...Read more

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Need help. Is 93 mg/dl ok for a fasting blood glucose level?

Yes: It's in the normal range, but if it's a finger stick, the real value is probably higher and near the range for prediabetes. If you're overweight, begin diet/exercise/weight loss to avoid progression to diabetes. The exact name of the problem doesn't matter, it's all one disorder. ...Read more

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Fasting blood glucose 220, hgca1 10.6.Should I put in insulin?

Diabetes: Your fasting sugar and a1c indicate poor control of diabetes. For type 2 diabetes there are several options for med combinations. Your doctor can counsel you on which meds are optimal to bring the numbers down, and Insulin is certainly an option for non-oral management. ...Read more

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My fasting blood glucose was 6.8 mmol/L this morning. Is this normal?

My fasting blood glucose was 6.8 mmol/L this morning. Is this normal?

High for fasting: A blood glucose of 6.8 mmol/L (122 mg/dl) is within the range of a normal blood glucose, however it is high for a fasting blood glucose (10 hours after last eating. If your blood glucose was checked before you had eaten anything (i.e. fasting) then it should be less than 5.5 mmol/L. You may need other tests, such as HgbA1c or glucose tolerance test, to determine whether or not you have diabetes. ...Read more

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What's the average fasting blood glucose range for a type 2 diabetic?

What's the average fasting blood glucose range for a type 2 diabetic?

Normal below 100: The normal blood glucose range is the same in a diabetic patient as in anyone else - below 100. This is the goal that we generally aim for in treating patients. Often, however, patients blood sugars will be higher than this. ...Read more

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My blood glucose after 14hours fasting was 10.60...Am I diabetic? Which type?

Yes, diabetic: A fasting glucose that high is consistent with diabetes. In your age group, you most likely have type 2 diabetes, but this can be determined by your physician. You need treatment with diet, exercise, and most likely medication. ...Read more

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At fasting blood glucose is 4.75 taken sugar after 2 hours then glucose is 4.74?

Normal: Both levels are normal. Blood sugar levels can remain very stable no matter what you eat when you have a normal pancreas. ...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