Top
40
Doctor insights on: Glucose Tolerance Glucose Fasting 2hr Glucose Post 75 Gm

Share

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


3

3
Insulin resistance? fasting insulin 76pmol/l after 75gOral glucose- 1hr-insulin-849pmol/l . 2 hr-864pmol/l glucose fast 5.4mmol/l 1hr10.4 2hr7.5

Insulin resistance? 
fasting insulin 76pmol/l 
after 75gOral glucose- 
1hr-insulin-849pmol/l . 2 hr-864pmol/l

glucose fast 5.4mmol/l
1hr10.4
2hr7.5

Time to get serious: You have normal glucose tolerance. Your fasting and 2 hr glu is not quite at the level of "impaired". Your insulin levels are on the high side, suggesting insulin resistance. Now is the time to start getting your weight under control, proper diet, and physical activity. Talk to your doctor about your particular situation. ...Read more

4

4
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

See 1 more doctor answer
5

5
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

See 1 more doctor answer
7

7
Will 4 grams of sugar affect fasting blood glucose?

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

Dr. Alvin Lin Dr. Lin
1 doctor agreed:
9

9
Blood glucose post prandial is 81.00 but serum insulin is2.7?

Dr. Alvin Lin Dr. Lin
1 doctor agreed:
Blood glucose post prandial is 81.00 but serum insulin is2.7?

What's your question: Why was your serum Insulin checked in first place? What's the reference range given for insulin? How did your ordering physician interpret test for you? Why was blood drawn after a meal b/c you need to be fasting in order to calculate your homa-ir? As you can see, too many questions need to be addressed before we even get to your question, whatever it is! ...Read more

10

10
Does this suggest diabetes? Glucose - 62, Glucose Fasting - 69, Insulin Fasting

Does this suggest diabetes? Glucose - 62, Glucose Fasting - 69, Insulin Fasting

Nope: Those are excellent numbers, even going to a little low. Diabetes is not a concern until your fasting glucose starts going over 100, and it isn't called diabetes until higher than that. A1c would also be much higher (6.5% or above is diabetes, 5.7-6.4% is increased risk, 4-5.6% is normal). Good luck! ...Read more

See 1 more doctor answer
11

11
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

13

13
Is 124 blood glucose level considered prediabetes?

Is 124 blood glucose level considered prediabetes?

I would guess: That it definitely yes. Wise up before it is too late and get rid of all that sugar and sweeteners. ...Read more

15

15
My bl sugar level drops to 50 3 h after eating,normal insulin, c-peptide, liver enzymes' levels,family history of diabetes,is it reactive hypoglycemia?

My bl sugar level drops to 50 3 h after eating,normal insulin, c-peptide, liver enzymes' levels,family history of diabetes,is it reactive hypoglycemia?

Reactive hypoglycemi: yes. It is. Whenever you eat ready sugars or simple sugars( made with table sugar, juices) your body releases lots of insulin . Your sugars get absorbed mostly from stmach and there is still insulin in the blood that continue to lower your sugar.you should avoid ready sugars and take more complex carbs. Along with proteins. You most likely will be developing diabetes in near future. So watch !! ...Read more

See 1 more doctor answer
16

16
Fasting glucose 78, c peptide 1.3, insulin level 10. Sugar has dropped into 40s at times during day. Insulinoma?

Fasting glucose 78, c peptide 1.3, insulin level 10. Sugar has dropped into 40s at times during day. Insulinoma?

Depends: Note did you ever check your glucometer, that is compare it with your doctor or pharmacy or clinics measurements to make sure you are getting valid readings? I remember you had issues with the cold and measuring your fasting glucose last month. ...Read more

18

18
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

19

19
Cortisol 22mcg/dl and acth plasma 22 pg/ml morning (@8:30AM), TSH-4.26, Ft3- 2.34, Ft4-1.03, Insulin-11uiu/ml, avg glu-100. Fatigue, tired, F 28yrs ?

Cortisol 22mcg/dl and acth plasma 22 pg/ml morning (@8:30AM), TSH-4.26, Ft3- 2.34, Ft4-1.03, Insulin-11uiu/ml, avg glu-100. Fatigue, tired, F 28yrs ?

Mild or borderline: underactive thyroid. Your doctor can prescribe you synthryoid pill to raise your free t4 up to 10 from 1.03. Your fatigue and tiredness may go away hopefully after that. Other values are not that bad tsh may be little elevated according to some labs. Ft3 is little high. Insulin and blood sugar ok. So, get the prescription for synthyroid pill from your doctor and start taking. ...Read more

20

20
Does low fasting glucose levels auto. Mean good glucose homeostasis?

Does low fasting glucose levels auto. Mean good glucose homeostasis?

No : Not sure if you mean low as in hypoglycemia, or low as in not high. Even if fasting blood sugar is normal, post-prandial blood sugar may not be. However, it is always good to have normal fasting blood sugar. ...Read more

21

21
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

22

22
Glucose fasting 80, 60min 168, 120min 119. Insulin fasting 5.25, 60min 42.36, 120min 34.47. HbA1c 5,2%. Impaired glucose tolerance/insulin resistance?

Nice and normal: Hi. Those glucose and insulin values look nice and normal, showing neither impaired glucose tolerance nor insulin resistance. Eat healthily and exercise regularly. Good luck! ...Read more

23

23
What is y our glucose fasting?

What is y our glucose fasting?

Normal under 100: A fasting glucose is a measurement of the glucose level after having nothing to eat overnight. A normal value is below 100 mg/dl. ...Read more

24

24
What is impaired fasting glucose?

What is impaired fasting glucose?

101-125: Between 101 and 125mg/dl when measured by a lab draw out of a vein after an 8-hour fast. This is not for a finger-stick glucose. (ada criteria) check w/your doctor and begin treatment now. ...Read more

25

25
Is non fasting glucose of 94 good?

Normal: Any random non fasting glucose of under 200 mg/dl is considered normal. Fasting blood sugars should be less than 126 mg/dl. ...Read more

26

26
What does high glucose fasting mean?

What does high glucose fasting mean?

Many things: It could means many things including: lab error, pre-diabetes, diabetes, not fasting long enough...You need to repeat it and make sure it is not a persistent trend. If it's high again, then it is unlikely to be a lab error and you might need to be tested for diabetes/pre-diabetes. ...Read more

27

27
How could a fasting glucose level increase?

Liver glucose output: The liver manufactures glucose. Many things regulate it, but the reason most people have elevated fasting glucoses is because the liver may become resistant to insulin. Normal Insulin production/sensitivity helps to keep liver glucose output normal. When the liver becomes resistant to the effects of insulin, it will not be able to keep glucose production down to normal. This ?risk for diabetes. ...Read more

28

28
What does a non fasting glucose of 114 mean?

Not much: If you're going to check a glucose, do it fasting or two hours after a meal. Those are the only times that there are standardized normal values. A glucose of 200 or greater at any time is indicative of diabetes. ...Read more

29

29
Is a fasting glucose level of 63 any concern?

Is a fasting glucose level of 63  any concern?

On insulin?: Are you on insulin? If you are not on insulin, then a fasting glucose of 63 could be normal in a younger person that is physically active. If you are on Insulin and are diabetic, it is a little bit too low and your Insulin dose needs adjustment. ...Read more

30

30
Fasting glucose time, is it 10 hrs 12 hrs or 14hrs?

Generally: Anything that is at least 8 hours. True fasting is morning glucose level after no food ingestion from dinner the night before. ...Read more

31

31
What is a normal range for a non fasting glucose number?

Wide range: After a meal, the glu can vary a lot, depending on what you ate, when you ate, and how fast your GI tract digests the food. A random glucose of more than 200 is indicative of diabetes, but it should be verified with a fasting glucose or an a1c. ...Read more

32

32
What is the normal range for a non-fasting glucose number?

What is the normal range for a non-fasting glucose number?

Below 140: But there are a lot of variables that can affect this - how long ago someone ate, how much they ate, the mix of carbs, fat, and protein, as well as the mix of simple and complex carbs. For this reason, a fasting blood sugar is preferred for determine whether or not someone has diabetes. ...Read more

33

33
What can I do if my glucose fasting test is 107. Is it normal?

If it's: A lab draw and not a finger-stick, it's just above the upper limit of normal and in the bottom of the prediabetes range. You're probably overweight and Insulin resistant, so start with diet and exercise to lose weight now before it worsens. ...Read more

34

34
My glucose fasting level is 6.2. What does this level mean exactly?

My glucose fasting level is 6.2. What does this level mean exactly?

Av Glucose 143 mg/dL: according to this research: http://care.diabetesjournals.org/content/26/3/881.short. or http://www.medscape.com/viewarticle/427799. In human trials, an optimal HbA1c [for lowest rates of cardiovascular events (heart attacks, etc.) for middle age "normal/asymptomatic" people with zero history of health problems] within 5 years is 5.0%, corresponding to an average blood glucose of 100 mg/dL. ...Read more

See 1 more doctor answer
35

35
What should I do for high fasting glucose with normal random glucose?

What should I do for high fasting glucose with normal random glucose?

Diet/exercise: It's not normal to have a high fasting blood sugar. By definition, it means you have pre-diabetes. This is an important time to look at your lifestyle choices because you can bring it back to normal with the right diet/exercise routine. If you are overweight, work on losing some weight. Watch portion size and try at least 30 min of moderate exercise 5 days/week. ...Read more

36

36
What is the optimal time for a fasting glucose reading? 6 hours? 8? Thanks.

What is the optimal time for a fasting glucose reading?  6 hours?  8?  Thanks.

8 hrs minimum: Preferably 12 hrs. Have only water during this period. ...Read more

40

40
Hii my fasting glucose level is 122 while my hab1c is 5.5 %. Please advise if the numbers are good or bad.

High glucose: The hba1c of 5.5 is normal, but a fasting glucose of 122 is high (normal under 100). You should have it repeated to see if it was a lab error. If still high, it means you have impaired glucose tolerance, it would be helpful to monitor sugars at home, before and 2 hrs after meals. ...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
2,605 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