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HelpTest Code LAB90 Hemoglobin A1C
Reporting Title
Hemoglobin A1C
Estimated Average glucose (eAG)
Methodology
Roche Turbidimetric Inhibition Immunoassay RMH, GMC, MGH, MH and DH
Useful in monitoring therapeutic goals for glycemic control.
Performing Laboratory
OhioHealth Laboratory Services-RMH, GMC, DH, MGH, and MH Core Laboratories
Specimen Requirements
Draw blood in a lavender-top (EDTA) tube(s) and send EDTA whole blood. Mix by gently inverting 8 times. Forward unprocessed whole blood
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood | Refrigerated | 7 days |
| Ambient | 3 days | |
| Frozen | 6 months |
Reference Values
Sites using the Roche Chemistry Platform -RMH, GMC, DH, MGH, MH
Normal: 4.2% - 5.6%
Increased risk for diabetes: 5.7% - 6.4%
Diabetes: ≥ 6.5%
Pediatrics: No established reference range
Estimated average glucose: 74-114 mg/dL
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
83036