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Doctor insights on: Diagnosing Diabetes

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What are the tests for diagnosing diabetes?

What are the tests for diagnosing diabetes?

Testing for diabetes: Hi. The tests for diabetes (fasting glucose, post-challenge glucose, 3-month average glucose, and random glucose) all have their strengths and weaknesses. A1c is an excellent test and vital to the modern management of diabetes; it's NOT the most sensitive diagnostic test, however. Fasting and post-challenge glucoses can both reveal more subtle abnormalities. Random glucose is a blunt instrument. ...Read more

Dr. Quang Nguyen
3,215 doctors shared insights

Diabetes (Definition)

Diabetes is a disease of increased blood glucose levels. Glucose is a type of sugar that comes from the intake of food. Insulin is a type of hormone that removes the glucose from the blood and moves it into the cells to provide them with energy. There are two different types of diabetes: type 1 and type 2. Type 1 diabetes is when the body does not make any insulin. Therefore, glucose stays inside the blood and does not move into the cells. Type 2 diabetes, which is commonly associated with obesity, is when the body is either resistant to the effects of insulin or when the body does not produce enough insulin. Increased levels of glucose in the body causes severe damage to the ...Read more


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Which test is most accurate for diagnosing diabetes?

Which test is most accurate for diagnosing diabetes?

No 'best'-: if any of the several we use are abnormal [ fasting sugar, 2hr post-meat sugar, random blood sugar, HgA1c], we label the patient 'diabetic' as early discovery, treatment reduces risks of future complications ...Read more

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How helpful is urine in diagnosing diabetes?

How helpful is urine in diagnosing diabetes?

It is helpful: But if wait til sugar appears in urine, you've delayed diagnosis significantly as sugar appears in urine when blood sugar > 200 but DX diabetes with fasting >126. ...Read more

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Is fasting bgl accurate for diagnosing diabetes?

Is fasting bgl accurate for diagnosing diabetes?

Yes: It's one way to diagnose diabetes. Another way is to check a a1c. That test does not require fasting. ...Read more

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Can you tell me how useful is urine in diagnosing diabetes?

Can you tell me how useful is urine in diagnosing diabetes?

Abnormal: Hi. It's abnormal to have glucose in the urine, but there is no diagnostic criteria or test that uses urine glucose. There are 4 approved ways to test for diabetes and all use blood testing: fasting glucose, oral glucose tolerance test, A1c, and random glucose (each with their own diagnostic criteria). If you had a urine analysis and had glucose in the urine, get tested. You're probably diabetic. ...Read more

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Are diastix (bayer) urinalysis strips acurate in diagnosing diabetes?

Are diastix (bayer) urinalysis strips acurate in diagnosing diabetes?

NO: Diabetes is diagnosed when fasting blood sugar is over 125. Diastix detect sugar in the urine which occurs only when the blood sugar is over 180, so it would miss a lot of cases. Also, if someone has eaten a lot of sweets or other carbs, their blood sugar might go over 180 for a brief time, but return to normal quickly, so they aren't diabetic, but diastix would show sugar in the urine. ...Read more

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Are random blood sugar test for glucose accurate for diagnosing diabetes?

Are random blood sugar test for glucose accurate for diagnosing diabetes?

Not ideal: There are multiple tests for diabetes but preferred are fasting glucose and hemoglobin A1c levels. Generally, these are tested on two separate occasions to confirm the diagnosis unless the numbers are way out of range. Non-fasting glucose with symptoms suggestive of diabetes can be reliable. Take care. ...Read more

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How do you differentiate partial diabetes insipidus from total when diagnosing?

How do you differentiate partial diabetes insipidus from total when diagnosing?

Complicated: The answer to this question should be given face to face with your physician as it can be a little technical to explain. ...Read more

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How common is diabetes in the U.S.?

How common is diabetes in the U.S.?

Diabetes in the USA: Regrettably increasing almost daily. There are many reasons, not the least of which is underlying obesity, lack of work options, good foods too expensive, limited exercise, .. The problem keeps growing. I am curious to learn why you are asking that question. ...Read more