Hemoglobin A1c

Test Code
A1C


Preferred Specimen
 2 2 mL whole blood collected in an EDTA (lavender-top) tube


Minimum Volume
0.5 mL


Other Acceptable Specimens
None


Transport Container
EDTA (lavender-top) tube


Transport Temperature
Ambient


Specimen Stability
 Ambient: 3 days
Refrigerated: 7 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Tubes other than EDTA


Methodology
Turbidimetric Inhibition Immunoassay

Setup Schedule
24/7


Report Available
Same day


Reference Range
  4.8-6.0 % of total hemoglobin


Clinical Significance
To assist with control of blood glucose levels, the American Diabetes Association (ADA) has recommended glycated hemoglobin testing (HbA1c) twice a year for patients with stable glycemia, and quarterly for patients with poor glucose control. Interpretative ranges are based on ADA guidelines.




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.