The Cleveland Clinic

Diabetes: Blood Glucose Control

The chart below gives you an idea of what your blood glucose level should be. Your goal blood glucose range may be different from another person's and will change throughout the day. Your health care provider will tell you what range is good for you.

Recommended Blood Glucose Range for People With Diabetes*

Time of Test  Goal plasma glucose
Before meals 90-130 mg/dL (milligrams per deciliter)
Before bedtime snack (1-2 hours after a meal/postprandial) less than 180mg/dL
Every three months HgA1c less than 7%

*Source: American Diabetes Association, 2003

For women with gestational diabetes, experts recommend the following goals for diabetes management:

  • A fasting glucose less than 105 mg/dL (plasma) or less than 95 mg/dL (whole blood)
  • A 2 hour post meal less than 130mg/dL (plasma) or less than 120 md/dL (whole blood)

When to Call the Doctor

If your blood glucose is less than 70 mg/dL and you have more than one unexplained low blood glucose reaction in one week, call your health care provider.

If your blood glucose is more than 180 mg/dL for more than a week, or if you have two consecutive readings greater than 300 mg/dL, call your health care provider.

In most cases, your health care provider will suggest changes in your diabetes management.

Reviewed by Certified Diabetes Educators in the Department of Patient Education and Health Information and by physicians in the Department of Endocrinology at The Cleveland Clinic .
Edited by Brunilda Nazario , MD, WebMD, October 2004.

Portions of this page copyright © The Cleveland Clinic 2000-2005


Last Editorial Review: 5/24/2005



STAY INFORMED

Get the Latest health and medical information delivered direct to your inbox!