Screening technology popped up in the news again in December 2009 when the American Diabetes Association published new clinical practice recommendations. (Despite the timing, the news story quickly moved to into the top 10 most-read topics on Medscape.) The guidelines promote the use of the hemoglobin A1c (A1c) as a faster, easier diagnostic test that could help reduce the number of undiagnosed patients and better identify patients with prediabetes. A1c measures average blood glucose levels for a period of up to 3 months. Previously it was used only to evaluate diabetic control with time, but because it doesn’t require fasting, A1c testing will encourage more people to get tested, leading to treatments and lifestyle changes that could prevent the worst effects of the disease, the American Diabetes Association said.
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