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Hemoglobin A1c with Reflex to 1,5-Anhydroglucitol (1,5-AG)
Test Code10380
CPT Codes
83036
Includes
If Hemoglobin A1c is ≥6.5% and ≤8.0%, then 1,5-Anhydroglucitol (1,5-AG), Intermediate Glycemic Control will be performed at an additional charge (CPT code(s): 84378).
Preferred Specimen
Submit two separate specimens:
Whole blood from a full EDTA (lavender-top) tube and
1 mL serum from a serum separator tube (SST), received spun or red-top tube (no gel)
Whole blood from a full EDTA (lavender-top) tube and
1 mL serum from a serum separator tube (SST), received spun or red-top tube (no gel)
Minimum Volume
0.5 mL for each sample type
Other Acceptable Specimens
Preferred: Submit two separate specimens: Whole blood (1 full EDTA lavender-top tube) and 1 mL serum
Acceptable: Submit two separate specimens: Whole blood (1 full EDTA lavender-top tube) and 1 mL plasma collected in an EDTA (lavender-top) tube
Acceptable: Submit two separate specimens: Whole blood (1 full EDTA lavender-top tube) and 1 mL plasma collected in an EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Sodium fluoride/oxalate (gray-top) tube • Heparinized plasma • Unspun serum separator tube
Methodology
Turbidimetric Inhibition Immunoassay
Setup Schedule
Set up: Daily; Report available: 1 day
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.
