Tools, Technologies and Training for Healthcare Laboratories

Quality Standards

Setting Method Specifications for Glycated Hemoglobin

In the March 2002 issue of Clin Chem, the NACB published a 36 page report about the use of laboratory tests for patients with diabetes. It's probably the longest paper ever published by Clin Chem. Dr. Westgard examined the "evidence-based" recommendations, though, and found some poor Sigma values. Here, using Validator software, Dr. Westgard demonstrates how to set useful method specifications for GHb.

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