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Doctor insights on: Is It Possible For Someone To Have Abnormally High Plasma Glucose Concentration And Yet Not Have Glycosuria

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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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Could a large carb intake cause a large increase in plasma glucose concentration?

Could a large carb intake cause a large increase in plasma glucose concentration?

Yes: Hi. Carbohydrates are polymers of sugars, and get broken down to sugars (except fibers, which are carbohydrates humans can't break down). If you're not diabetic, a "large" carb intake won't produce a "large" increase in blood glucose, but it can if you're diabetic. Eat healthily and exercise regularly. Good luck! ...Read more

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What could cause plasma glucose to be 10 - 15% higher than whole blood glucose concentration?

What could cause plasma glucose to be 10 - 15% higher than whole blood glucose concentration?

Proportions: Plasma has more liquid in it than whole blood. Glucose is dissolved mostly in the plasma component of blood. Whole blood has less of the liquid in it and therefore will have a lower glucose concentration than plasma. ...Read more

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Why would a patient with pancreatic cancer show increased levels of plasma glucose concentrations?

Why would a patient with pancreatic cancer show increased levels of plasma glucose concentrations?

Sometimes: Yes, because pancreas contain cells that produce insulin. If the cancer is advanced enough, these cells too get affected. But these are general statements that the possibility exists. Ask your doctor for specific recommendations. ...Read more

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Why do diabetics need to know their blood glucose concentration?

Why do diabetics need to know their blood glucose concentration?

Monitor Control: Blood sugar can change from one point in time to the next. A hba1c won't elaborate on what got it there. Testing blood sugars allows patients and doctors to decide how to adjust medication or when one needs to start taking medication. Particularly at the extremes, knowing blood sugar can prevent trouble with very high or low blood sugars. ...Read more

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What's the reason for the increase of glucose concentration throughout the day?

Post prandial: After eating, there's an inevitable mild blood sugar increase as glucose enters the system, but normally this increase is physiological and expected. It is also short-lived. It signals the body that fuel is available so that other hormones can be released to help use and store the intake of energy. ...Read more

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What's the mechanism that prevent glucose concentration dropping too low?

What's the mechanism that prevent glucose concentration dropping too low?

Hormones: Called counter regulatory hormones tend to resist the severe drop of bs. Such hormones include cortiol, Epinephrine and growth hormone. You also have the liver act as a reservoir of glycogen that can be broken down into glucose in times of need such as acute hypoglycemia or during prolonged fasting. ...Read more

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What are the urine findings be for someone with a 500 glucose concentration?

What are the urine findings be for someone with a 500 glucose concentration?

You would see: A lot of glucose in the urine and a higher urine volume. Forget the urine for now, however. If your glucose is 500, you need to seed immediate medical attention and get on proper therapy to lower your glucose to safer and more normal levels. ...Read more

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What's a glucose concentration like in diabetics?

What's a glucose concentration like in diabetics?

Diabetes: Any or all of the following: fasting blood sugars of > 125mg/dl, 2 hour post prandial blood sugars of >199 mg/dl, or blood sugar of at least 300 mg/dl at any time are criteria for the diagnosis of diabetes mellitus. ...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?

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 mean plasma glucose is 111; hba1c is 5.3. My doctor said I don't have diabetes, but isn't my glucose high?

My mean plasma glucose is 111; hba1c is 5.3. My doctor said I don't have diabetes, but isn't my glucose high?

No: A1c between5.7 to 6.5 indicated pre diabetes.
> 6.5 indicates diabetes. Having said that diabetes is more like a gradient disease- by that what I mean is with an a1c of 5.3 your risk of diabetes is slightly higher than a person with a1c of 4.8.
Life style modifications with diet and exercise will decrease this risk. ...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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I'm 40 year old my fasting plasma glucose is 6.0 I want to know if it is high or low?

I'm 40 year old my fasting plasma glucose is 6.0 I want to know if it is high or low?

High: I assume the 6.0 refers to mmol/l, a measurement typically used in europe. In the us, this would be 108 mg/dl. A fasting glucose above 100 mg/dl (5.5 mmol/l) is considered high. If it is above 125 mg/dl (7 mmol/l) it is consistent with diabetes. ...Read more

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I'm 40 years old my fasting plasma glucose is 6.0 it is normal or high?

I'm 40 years old my fasting plasma glucose is 6.0 it is normal or high?

Not normal: Fasting glucose of 6 mmol/l is equal to 108 mg/dl which put you in the pre-diabetes range (100-125 mg/dl). If this is the first time you see this, repeat it again to see if this was not just a lab error. If you truly worries about diabetes, ask for a a1c test on the next blood draw as well. This test is more stable and give an average of your last 3 month blood sugar. ...Read more

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I got 179 mg in plasma glucose post prandial. Can I have diabetes?

Impaired Tolerance: A blood sugar of 179 mg/ dl 2 hours after a meal or ogtt is in the diagnostic range of impaired glucose tolerance, pre-diabetes. This condition places patients at high risk for developing diabetes and is treated by physicians. Lifestyle modification is the most important aspect of treatment in order to avoid further progression to disease. ...Read more

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Doctor, I am 43 yrs old n my fasting plasma glucose is 102mg/dl and my post lunch plasma glucose is 149mg/dl, is it normal?

FASTING: Your fasting bs is normal, although some physicians believe that it should be under 95.
A 2 hours post pandrial bs ideally should be under 120. A level of 149 is slightly elevated but not to be concerned. ...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?

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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A1C 5.3- Estimated Mean Plasma Glucose was 90. Finger stick was 84. What does this all mean? Am I prediabetic? Health anxieties....

Not Prediabetic!: Your fingerstick and mean glucose are both normal. Thanks for taking an interest in your health and keep up the good work! 5.7 to 6.4 is pre-diabetic range for a1c according to American Diabetes Association. ...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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Is an mean plasma glucose of 136 with an a1c 6.0 within normal range>?

Is an mean plasma glucose of 136 with an a1c 6.0 within normal range>?

Slightly eleváted la: I don't know if your glucose was a fasting level or not. If it was a fasting level it was slightly elevated. The Hgb A1c meàsures long term glucose control and should be below 5, 7.
So these tests both indicate that you have issues with glycemic control. ...Read more

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Is fasting plasma glucose test by itself good enough to diagnose diabetes?

Is fasting plasma glucose test by itself good enough to diagnose diabetes?

No: Diabetes is diagnosed based on several criteria. One test is the fasting plasma glucose test, but this should be confirmed with a second elevated fasting glucose test. A glucose challenge test or a hemoglobin A1c test may be substituted as well. ...Read more

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Is the fasting plasma glucose test the best way to find diabetes of any type?

No: Diabetes is diagnosed based on several criteria. One test is the fasting plasma glucose test, but this should be confirmed with a second elevated fasting glucose test. A glucose challenge test or a hemoglobin A1c test may be substituted as well. ...Read more

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Fasting Plasma Glucose test reports HB A1c [HPLC] as 5.80% (5.7-6.4) and says "per-diabatic". What are some diet and lifestyle recommendations?

Fasting Plasma Glucose test reports HB A1c [HPLC] as 5.80% (5.7-6.4) and says "per-diabatic". What are some diet and lifestyle recommendations?

Low carb/grain diet: Cut our grains/limit starches and increase good fats (olive oil, avocado, nuts). have good animal based protein intake (including organic eggs and fish). A1C of 5.8% is indeed in the impaired range and should normalize with the above diet and 10-20% weight loss if extra weight is present ...Read more

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Why does the level of plasma glucose rise after a meal?

Food is energy: Eating food will provide your body with energy to function. Simple sugars will increase the blood sugar quickly. Carbs and starches will increase it more slowly. Proteins will have the least impact on blood sugar. ...Read more

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1/23/16 A1c 5.3% Fasting 84 Estimated Mean Plasma Glucose 90. Lost 12 lbs. No sugar diet. Ate very healthy but not a lot of calories. 7/25/16-A1c 5.9%. Fasting 79. Est. Mean PlaGlucose 110.47 Nondiabetic-why did they rise? I am 51, 121lbs 5'4 worried!

Lab numbers Fluctuat: The blood test number tend to fluctuate from one time to other. So I do not think your sugars or A1C are any worse now than they were in Jan 2016. As long as your Fasting blood sugar is staying under 100, you are safe. But in the meantime, continue your increased physical activity daily. That will keep you healthy. Recheck your sugar and A1c in 6 months from now and perhaps once yearly thereafter. ...Read more

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My baby is big but my plasma glucose test is normal as well as the others. Why?

My baby is big but my plasma glucose test is normal as well as the others. Why?

Large for gestationa: The mother has a large for gestational age infant. This is sometimes due to gestational diabetes. At times it is because of maternal overweight or the development of gestational diabetes in the future pregnancies. Even if the mother has normal fasting glucose, she should have glucose tolerance test and hemoglobin A1c to confirm that she does not have type 2 or gestatational diabetes. ...Read more

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What does it mean on a A1c where it shows a 6.1 for value and then mean plasma glucose of 140 being normal?

Repeat test: The A1C test result reflects your average blood sugar level for the past two to three months. For someone who doesn't have diabetes, a normal A1C level can range from 4.5 to 6 percent. A result between 5.7 and 6.4 percent is considered prediabetes, which indicates a high risk of developing diabetes. When the test is used to diagnose, a level of 6.5 percent or more on 2 occasions is diagnostic. ...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


Dr. Julie Abbott
86 Doctors shared insights

Sugar In Urine (Definition)

Glucose in urine also known as 'glycosuria' is mostly seen in diabetes mellitus with elevated blood sugar. Very very rarely (1 in 1000 or even less) it is seen in a defect of kidney ...Read more