CPT/HCPCS
82668
Order Code
CH375
Turnaround Time
24-48 hours
Specimen Requirements
Specimen Source
Serum
Transport Container
(Specimen Container)
(Specimen Container)
SST (Tiger Top) /Aliquot tube refrigerated
Preferred Specimens
Serum
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport Refrigerated (cold packs)
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | 8 hours |
| Refrigerated | 7 days |
| Frozen | 28 days |
Special Instructions
Due to diurnal variation, it is recommended that specimens be collected between 7: 30am and noon
Test Details
Methodology
Immunoassay (IA)
Clinical Significance
An aid in distinguishing between primary and secondary polycythemia Differentiating between appropriate secondary polycythemia (eg, high-altitude living, pulmonary disease, tobacco use) and inappropriate secondary polycythemia (eg, tumors) Identifying candidates for erythropoietin (EPO) replacement therapy (eg, chronic renal failure) Evaluating patients undergoing EPO replacement therapy who demonstrate an inadequate hematopoietic response.
Reference Ranges
See Laboratory Report
