Glucose Tolerance Test

If your 2 hour post-meal blood sugar is elevated, the more likely you are to be damaging your arteries.

How efficiently your body clears glucose from your blood is a direct function of your insulin sensitivity.

Insulin is toxic to the lining of blood vessels. For a given sugar load, your pancreas should secrete insulin in the least possible quantity to return serum glucose to normal fasting levels.

Optimal fasting glucose level:  70 to 85 mg/dL. Modest elevations above 85 create an increased risk for heart attack.

Check your blood sugar after an 8 hour fast.

GLUCOSE TOLERANCE TEST

  1. After an 8-12 hour fast, obtain a baseline glucose level. This is your fasting glucose.
  2. Obtain a 75 gram (2/3 cup) glucose drink. Consume this entirely within 5 minutes. You are now at “time 0.”
  3. Test and record your blood glucose at time “1 hour.”
  4. Test and record your blood glucose at time “2 hours.”
  5. Test and record your blood glucose at time “3 hours.”

Do not exercise during this 3 hour period, or it will affect test results.

TEST INTERPRETATION

Fasting serum glucose ideally less than 86 mg/dL

Glucose, 1 hr. post 75g load ideally less than 140 mg/dL

Glucose, 2 hr. post 75g load ideally less than 120 mg/dL

Glucose, 3 hr. post 75g load ideally returns to baseline

If your numbers don’t fall into the ideal range, don’t panic. Do something about it! Exercise, stress reduction, and proper diet are the keys.

 

 

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