Home
HelpTest Code HBA1C or LAB90 Hemoglobin A1c, Blood
Specimen Requirements
| Container Type: |
EDTA Whole blood, lavender |
| Optimal Collection Volume: |
4.5mL; full tube |
| Minimum Volume: |
1 EDTA (lavender) microtainer |
| Collection Instructions: |
Gently invert the sample 5-6 times after collection. |
| Specimen Transport: |
Refrigerate |
| Processing Instructions: |
Do not centrifuge |
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole blood | Refrigerated | 7 days |
| Room Temperature | 3 days | |
| Frozen | 6 months |
Specimen Rejection Criteria
Quantity not sufficient
Useful For
- Evaluating the long-term control of blood glucose concentrations in patients with diabetes
- Diagnosing diabetes
- Identifying patients at increased risk for diabetes (prediabetes)
Methodology
Roche Cobas - Turbidimetric inhibition immunoassay (TINIA) for hemolyzed whole blood
Reference Ranges
4.4-5.6%
Note: Appended to each result is the following statement:
- Reference range based upon American Diabetes Association Standards of Care (2013). Patients with Hgb A1c values between 5.7 and 6.4% are at increased risk of diabetes. Values >6.4% are diagnostic for diabetes.
Day(s) Performed
24/7
Expected TAT
Same day
Performing Laboratory
Bronson Laboratory, Chemistry - Kalamazoo, Battle Creek, Paw Paw, South Haven
Sample Retention Time
7 days
CPT Code
83036