NIH Clinical Center
Dept. of Lab Medicine | Dept. of Transfusion Medicine | Anatomic Pathology Test Guide
  
 
Test Name:Hemoglobin A1C
Protocol Use Only:
Department:Laboratory Medicine
Lab Area:Hematology
Last Modified on:06/14/2013 11:45:13 AM
Synonyms:Glycosylated Hemoglobin, A1C, hgb, hb
 
Reference Ranges:

Hemoglobin A1C  
Performed at National Institutes of Health, Bethesda MD
Effective 13Jun13 - present:
Hemoglobin A1C:   4.0 - 6.0 %
Extimated Average Glucose:  68 - 126 mg/dL

Effective 19Aug09 – 12Jun13:    
Hemoglobin A1C:   4.8 – 6.4 %
Extimated Average Glucose:  70 - 115 mg/dL
NOTE:  Formula derived from study accepted by the American Diabetes Association:  28.7 x A1C - 46.7 = eAG

Effective 29Apr98 – 18Aug09:    4.8 – 6.4 %

Glycosylated Hemoglobin  %
Effective 01Jul85 – 28Apr98:    5.4 – 7.6
Effective 16Feb82 – 30Jun85:    5.7 – 8.8

 

 
 
 

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