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Chromogranin A
Test CodeLAB1861
CPT Codes
86316
Preferred Specimen
Red no-additive no-gel
Minimum Volume
0.5 mL
Instructions
Collect blood in red-top or serum separator tube. Centrifuge and separate the serum from the cells. Treatment with proton-pump inhibitors or H2-receptor blockers will cause an increase in Chromogranin A concentrations.
Transport Temperature
Room Temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 14 days
Refrigerated: 7 days
Frozen: 14 days
Methodology
Immunoassay (IA)