GLYCOHEMOGLOBIN(A1C ONLY)

Message
CHEMISTRY


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


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.


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


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.