Blood sugar tests measure how well your body is processing sugar. The results of the tests indicate whether you might have an underlying disease or condition.
Click on the tabs to the left to find out what these tests are, what's normal and what levels suggest you may have prediabetes or diabetes.
Fasting blood sugar
What is a fasting blood sugar test?
A fasting blood sugar test measures the amount of sugar (glucose) in your blood after you fast for eight hours.
What's normal?
Your fasting blood sugar is normal if it's 70 milligrams per deciliter (mg/dL), or 3.88 millimoles per liter (mmol/L), to 100 mg/dL (5.55 mmol/L).
What level suggests prediabetes?
If your fasting blood sugar is 100 mg/dL (5.55 mmol/L) to 125 mg/dL (6.94 mmol/L), you may have prediabetes.
What level suggests type 1 or type 2 diabetes?
A fasting blood sugar value by itself doesn't help distinguish between type 1 and type 2 diabetes. But a fasting blood glucose of 126 mg/dL (7.00 mmol/L) or higher is consistent with either type 1 or type 2 diabetes when accompanied by classic symptoms of diabetes — increased thirst or hunger, frequent urination, weight loss or blurred vision. Your doctor may repeat this and other tests on a different day to confirm the diagnosis.
Random blood sugar
What is a random blood sugar test?
This test measures your blood sugar without considering the last time you ate a meal, snack or beverage containing calories.
What's normal?
If your random blood sugar is less than 100 mg/dL (5.55 mmol/L), it's normal.
What level suggests prediabetes?
If your random blood sugar is greater than 100 mg/dL (5.55 mmol/L) but less than 199 mg/dL (11.05 mmol/L), you may have prediabetes.
What level suggests type 1 or type 2 diabetes?
A blood glucose of 200 mg/dL (11.11 mmol/L) or higher suggests you have either type 1 or type 2 diabetes.
2-hour glucose tolerance test
What is a 2-hour glucose tolerance test?
A glucose tolerance test measures your body's response to sugar. You drink a liquid containing sugar and then have blood withdrawn from a vein in your arm two hours later.
What's normal?
A normal level is less than 140 mg/dL (7.77 mmol/L).
What level suggests prediabetes?
If your two-hour glucose tolerance is 140 mg/dL (7.77 mmol/L) to 199 mg/dL (11.05 mmol/L), you may have prediabetes.
What level suggests type 1 or type 2 diabetes?
A blood sugar of 200 mg/dL (11.11 mmol/L) or higher two hours after you drink the sugar solution indicates you may have type 1 or type 2 diabetes. Your doctor may repeat this and other tests to confirm a diagnosis.
Glycated hemoglobin test
What is a glycated hemoglobin test?
A glycated hemoglobin test, also called a glycosylated hemoglobin test or hemoglobin A1C test, reflects your average blood sugar level for the two- to three-month period before the test. This test isn't used for diagnosis of prediabetes or diabetes. Instead, your doctor uses it to determine how well you're managing your blood sugar if you have diabetes.
What's normal?
The normal range at Mayo Clinic is 4 percent to 6 percent. But this range will vary from lab to lab. Normal standards haven't been established for this test.
2006-06-06 04:42:57
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answered by ? 3
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2016-05-18 08:34:46
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answer #2
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answered by ? 3
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2016-09-17 22:27:23
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answer #3
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2016-05-14 18:55:18
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answer #4
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answered by ? 4
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Do you mean "the normal level of blood sugar in a non-diabetic"?
Normal levels
Fasting blood sugar-(60 to 105 mg/dL)
Post prandial blood sugar-(126 mg/dL)
Blood sugar level should never go beyond 200 mg/dL.ie 2 hours after taking food.
2006-06-06 03:05:54
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answer #5
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answered by gangadharan nair 7
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Most current is 70-99
100-125 is considered impaired glucose tolerance
>126 (fasting) on 2 diff occasions is diabetes
Note: Stress, illness, and certain meds affect blood sugar (usually high) and when present are not defined as diabetes.
2006-06-06 09:41:03
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answer #6
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answered by J 4
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2017-02-08 22:26:07
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answer #7
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answered by Albert 4
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80/110 I'd see a doctor anyways, there are some precautions to the pretesting(chap.23)
2006-06-06 03:17:01
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answer #8
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answered by jt 4
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that is the most current 70-110
2006-06-06 03:04:00
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answer #9
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answered by tink35 2
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70 - 110 mg/dl.
2006-06-06 02:54:05
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answer #10
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answered by mbestevez 7
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