Eurofins Biomnis code

CHRA

Synonyms

• CgA

Clinic significance

Proteins present in the secretory chromaffin granules of neuroendocrine cells. Very high levels associated with neuroendocrine tumors and pheochromocytoma, intestinal carcinoid and tumors of the endocrine pancreas.

Prenalytics

• 1 mL
• Serum
• FROZEN

Further information

• PPIs (proton pump inhibitors) should be stopped 2-3 weeks before the chromogranin A assay

Methodology

Enzyme-immunoassay

Turnaround time

3 days