Casandra
Casandra Test Code QD27120Version 1 (DRAFT)
Performing Lab
Hemoglobin A‑2, Quantitative
Clinical Use
Order TestUse
Differential diagnosis of thalassemia and anemias. In β‑thalassemia trait, Hemoglobin A₂ is elevated.
Special Instructions
Blood transfusions within the last 4 months may affect results. Submit two EDTA (lavender‑top) tubes if a CBC is also being requested.
Limitations
Not provided.
Test Details
Methodology
Other
Biomarkers
Hemoglobin A2
AnalyteQuantitative Hemoglobin A2 • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
2-3 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Whole Blood
Volume
Not provided
Minimum Volume
1 mL
Container
EDTA (lavender‑top) tube
Collection Instructions
Submit 2 EDTA (lavender‑top) tubes if a CBC is also being requested
Patient Preparation
Blood transfusions within the last 4 months may affect results.
Causes for Rejection
Hemolysis • Clotted
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 5 days |
| Refrigerated | 7 days |
| Frozen | Unacceptable |