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GLYCOHEMOGLOBIN(A1C ONLY)
MessageCHEMISTRY
Test Code
HGA1C
Alias/See Also
GLYCOSYLATED HEMOGLOBIN, HGA1C, HBA1C, GLYCO,A1C, HGBA1C
Preferred Specimen
WHOLE BLOOD
Minimum Volume
2 mLs
Instructions
DRAW 1 LAV TOP TUBE AND SEND TO LAB.
Transport Container
ORIGINAL TUBE
Specimen Stability
Room temperature: 8 hours
Refrigerated (2 to 8°C): 7 days
Refrigerated (2 to 8°C): 7 days
Methodology
Enzymatic
Setup Schedule
DAILY
Report Available
DAILY
Reference Range
4.0 - 5.6 % normal
5.7 - 6.4 pre-diabetes
>=6.5% diabetic range -if patient has not yet been diagnosed with diabetes, see VA-DoD Diabetes Guidelines for more guidance.
5.7 - 6.4 pre-diabetes
>=6.5% diabetic range -if patient has not yet been diagnosed with diabetes, see VA-DoD Diabetes Guidelines for more guidance.
Clinical Significance
Hemoglobin A1c measurements are used as an aid in the diagnosis of diabetes mellitus, to identify patients who may be at risk for developing diabetes mellitus, and for the monitoring of long-term blood glucose control in individuals with diabetes mellitus.
Performing Laboratory
WHITE RIVER JUNCTION VT VA-CHEMISTRY 802-295-9363 EXT: 5518, 5519
Additional Information
VA GUIDELINES DIABETES
