CHROMOGRANIN A, SERUM
Specimen Required
Alternate Specimen
Rejection Criteria
Methodology
Stability
Reference Range
Performed
| Draw blood in a plain red-top tube. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) frozen in a screw-capped plastic vial. |
Alternate Specimen
| SST |
Rejection Criteria
| Plasma |
Methodology
| Immunofluorescence assay |
Stability
| Room Temperature: 48 hours; Refrigerated: 3 days; Frozen: 4 weeks |
Reference Range
| 0-103 ng/mL |
Performed
| Monday, Wednesday, Friday, Sunday |
| 2-7 days | |||||
| CHROA | |||||
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