How Often to Measure Blood Glucose?

Louis Kuritzky, MD

Posted: 02/01/2010


How frequently and at what times should BG be monitored?

Response from Louis Kuritzky, MD
Clinical Assistant Professor Division of Medicine Department of Community Health & Family Medicine University of Florida Gainesville, Florida

The American Association of Diabetes Educators recommends that all patients should be encouraged to self-monitor blood glucose (BG), regardless of whether they are being treated with insulin or oral agents.[1] The American Diabetes Association recommends that patients with type 2 diabetes who are taking multiple insulin injections should monitor BG at least 3 times per day, but they also note that the optimum frequency for self-monitoring is not clear for patients taking oral drugs or less frequent insulin injections.[2] Others have suggested that patients taking insulin should self-monitor BG at least 4 times a day, before meals and bedtime; and that patients with type 2 diabetes should check their BG at least 4 times per week (twice fasting and twice after meals).[3]


  1. Austin MM, Haas L, Johnson T, et al; American Association of Diabetes Educators. AADE position statement. Self-monitoring of blood glucose: benefits and utilization. Diabetes Educ. 2006;32:835-836, 844-847.
  2. American Diabetes Association. Standards of medical care in diabetes--2009. Diabetes Care. 2009;32(suppl 1):S13-S61.
  3. Benjamin EM. Self-monitoring of blood glucose: the basics. Clin Diabetes. 2002;20:45-47.