What timespan does glycated hemoglobin measurements reflect?

Updated: Oct 23, 2019
  • Author: Romesh Khardori, MD, PhD, FACP; Chief Editor: George T Griffing, MD  more...
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Answer

Binding of glucose to hemoglobin A is a nonenzymatic process that occurs over the lifespan of a red blood cell, which averages 120 days. Measurement of glycated hemoglobin thus reflects plasma glucose levels over the preceding 2-3 months.


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