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16379: Chromogranin A, Electrochemiluminescence Print View
Chromogranin A, ECL     ng/mL 

PRIMARY
1 Serum 0.8 (0.3) mL   Room Temperature - 7 Day(s)/Refrigerated - 7 Day(s)/Frozen - 35 Day(s)  
ALTERNATE

Chromogranin A (CgA) is the major protein within the catecholamine storage vesicles of the adrenal medulla. CgA has been shown to be co-released with polypeptide hormones from the following endocrine tissues: pancreatic islet cells, enteroendocrine cells, parathyroid chief cells, thyroid parafollicular C cells, and anterior pituitary cells. CgA concentrations may be elevated in patients with various endocrine neoplasms, e.g., anterior pituitary adenoma, parathyroid adenoma, medullary thyroid carcinoma, carcinoid tumor, and pancreatic islet cell tumor.

Patient Preparation:
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.
Setup Schedule
Sunday-Friday

Reported (Analytical Time)
Same day

CPT Code
86316

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Reject Criteria: Gross hemolysis; grossly lipemic; grossly icteric Transport Temperature: Room temperature Methodology: Electrochemiluminescence






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