Clarke Error Grid

Clarke Error Grid

The Clarke Error Grid (pronounced: clark error grid) is a graphical method used in the field of Diabetes Management to evaluate the clinical accuracy of glucose meters. It was developed by Dr. William Clarke and his colleagues in the 1980s.

Etymology

The term "Clarke Error Grid" is named after Dr. William Clarke, a renowned endocrinologist, who developed this method to assess the clinical accuracy of glucose meters.

Description

The Clarke Error Grid is divided into five zones (A, B, C, D, and E) that represent different levels of potential clinical risk resulting from inaccurate blood glucose readings.

• Zone A: Values within this zone are considered clinically accurate and would lead to appropriate treatment decisions.
• Zone B: Values in this zone are not as accurate as those in Zone A but are still close enough to lead to benign or no treatment.
• Zone C: Values in this zone would lead to overcorrecting acceptable blood glucose levels.
• Zone D: Values in this zone would fail to detect and treat hyperglycemia or hypoglycemia.
• Zone E: Values in this zone would confuse treatment of hyperglycemia for hypoglycemia, or vice versa, leading to potentially dangerous consequences.

Related Terms

• Blood Glucose Monitoring
• Continuous Glucose Monitoring
• Glucose Meter
• Hyperglycemia
• Hypoglycemia

See Also

• Consensus Error Grid
• Parkes Error Grid

External links

• Medical encyclopedia article on Clarke Error Grid
• Wikipedia's article - Clarke Error Grid

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