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Doctor insights on: Blood Sugar Vs Hba1c

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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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Can Fasting Blood Sugar (FBS) be used for short-term monitoring of blood sugar level?

Can Fasting Blood Sugar (FBS) be used for short-term monitoring of blood sugar level?

FBS: I presume you have type 1 diabetes given your age. My apologies if your doctor has said you have type 2 diabetes and he is correct. Very unlikely unless you are substantially overweight. You should check your blood sugar almost all day if you have type 1 diabetes. There is excellent safe equipment for continuous blood sugar control. Can you please give me some more information about your diabetes. ...Read more

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My blood sugar is high with fasting & insulin. Why?

My blood sugar is high with fasting & insulin. Why?

Because: You have diabetes and are not on an appropriate regimen of diet, exercise, medication etc. Check w/your doctor or diabetes care team. ...Read more

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What are the differences between fasting blood sugar and fasting plasma sugar?

What are the differences between fasting blood sugar and fasting plasma sugar?

Minor difference: There is about a 15% difference between whole blood glucose and plasma glucose, with the plasma glucose being higher. If you use a fingerstick glucose monitor, it is measuring whole blood glucose, whereas when you have blood drawn and sent to the lab, it is measuring plasma glucose. Some fingerstick meters will correct for the difference by adding 15% automatically. ...Read more

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Best drug for controlling high Blood sugar PP values?

Best drug for controlling high Blood sugar PP values?

Depends: But if you are an uncontrolled type 2 diabetic then insulin is on the horizon. Be very careful with your diet and get plenty of exercise! ...Read more

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Is a low blood glucose or high blood glucose better?

Is a low blood glucose or high blood glucose better?

Neither: Neither are good for you but the more dangerous one is low blood sugar. The effect of low blood sugar is quicker and you can definitely die from it. ...Read more

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Diabetes2 acceptable fasting and after meal blood sugars?

Diabetes2 acceptable fasting and  after meal  blood sugars?

Diabetes Control: Fasting under 100 is normal, treated under 120 is pretty good, over 140 not so good. 2 hours after meals normal is 140 to 150 and good control is the same , add 10-20 or so. Many people manage looser but i try to get better control without risking low blood sugars which can be very bad so be careful and work with your doctor closely. ...Read more

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Niacin and blood sugar or diabetes?

Niacin and blood sugar or diabetes?

Increase blood sugar: Increase blood sugars is a side effect seen with niacin.( a dose-related effect). Close blood glucose monitoring is advised for diabetics/ potentially diabetic patients during treatment with niacin; adjustment of diet and/or antidiabetic therapy may be necessary. See your physician for evaluation and care. ...Read more

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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

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What is the level for low blood sugar & high blood sugar?

Normal sugar levels: For children and non-pregnant adults, normal blood sugar (glucose) level is considered <100 mg/dl in fasting morning state, and <140 mg/dl after a meal. Anything above these levels is considered either pre-diabetes (fasting 100-125, post-meal 140-199) or diabetes mellitus (fasting >=126, post-meal >=200 mg/dl). Low blood sugar varies depending on person, but typically is considered <60-70 mg/dl. ...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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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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Is 173 a high blood sugar reading?

High glucose: Is this glu fasting? Your glu after a meal varies with what you ate, the speed of your GI tract, etc. It is hard to precisely say whether a post meal glu is too high. If you are testing your sugars because you are worried about diabetes, best to check fasting and also follow your a1c. Normal fasting glu is 100 or less. Diabetes is 126 or more. "impaired" is in between. ...Read more

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What is normal fasting blood sugar level fbs?

What is normal fasting blood sugar level fbs?

Normal FBS: Between 65-99 mg/dl - impaired fasting glucose (ifg), prediabetes, is between 100-125 mg/ dl. Fbs of 126 mg/dl or higher is in the diabetic range. ...Read more

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Is 6.6 blood sugar a diabetic ?

Is 6.6 blood sugar a diabetic  ?

Diabetes diagnosis: The Hemoglobin A1C test (HbA1c) is a measurement that captures your average glucose over the past 3 months. There is no official "set point" for diagnosis of diabetes using HbA1c as it is usually used by the doctor together with other tests, however generally those with HbA1c of 6.5% or higher are at a higher risk of diabetes-related complications such as diabetic retinopathy. ...Read more

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What is a normal fasting blood sugar level?

If fasting overnight: And drawn out of a vein by a lab, it's less than 100. Check diabetes.Org. ...Read more

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What is a normal non fasting blood sugar levels?

What is a normal non fasting blood sugar levels?

High blood sugar: In most cases a blood sugar is high if greater than 200 mg/dl. A fasting blood sugar should be less than 126 mg/dl. ...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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Is satisfactory blood glucose meter readings good?

Is satisfactory blood glucose meter readings good?

Yes: A good quality glucometer may not be as accurate and a true blood test but it is a great and very precise mode of checking you sugar on a daily basis ...Read more

Dr. Ira Katz
523 doctors shared insights

Hemoglobin A1c (Definition)

It helps determine the average blood sugar over a long period of time, about 2 or ...Read more