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HEMOGLOBIN A1C - QUEST

Test Code
LAB4750


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


Minimum Volume
0.5 mL


Transport Container
EDTA (lavender-top) tube


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 6 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Sodium fluoride/oxalate (gray-top) tube • Heparinized plasma


Methodology
Turbidimetric Inhibition Immunoassay

Setup Schedule
Daily


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.