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Dr. Andrew Rynne

Family Physician

Exp 50 years

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How high can your blood sugar level be ?

My friend has recently become a diabetic and I was wondering how high could a person s blood sugar be ? My dad has had in the 20 s before - is there any higher ? My friend has Type 1 Diabetes.
Tue, 15 Dec 2009
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Your friend should be taking insulin regularly without missing a dose. The levels up to 100 are considered normal, and levels between 100 and 126 are considered pre-diabetes. High sugar levels can be devastating on the body which can cause complications such as heart disease and stroke, blindness, hypertension, diabetic neuropathy, nerve damage, depression, complications with feet, kidney disease and limb amputation. So tell him to keep his sugars under good control with diet, exercise and insulin.

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