Eurofins Biomnis code

CHRA

Synonyms

• CgA

Specialty

Biochemistry

Clinical 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.

Preanalytics

• 1 x 1 mL :
• Serum
•   FROZEN
• Freezing within 4 hours

• A tube specifically for this analysis : No

Further information

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

Methodology

Enzyme-immunoassay

Turnaround time

2 days