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CHRGA / CGAK-M
CHROMOGRANIN A

Test Code CHRGA / CGAK-M 
Test CHROMOGRANIN A 
Methodology Homogeneous Time-Resolved Fluorescence 
Description Useful For: Follow-up or surveillance of patients with known or treated carcinoid tumors

Adjunct in the diagnosis of carcinoid tumors

Adjunct in the diagnosis of other neuroendocrine tumors, including pheochromocytomas, medullary thyroid carcinomas (MTC), functioning and nonfunctioning islet cell and gastrointestinal amine precursor uptake and decarboxylation (APUD) tumors, and pituitary adenomas

A possible adjunct in outcome prediction and follow-up in advanced prostate cancer 

Specimen Draw blood in a plain, red-top tube or serum gel tube. Spin down and send 0.5 mL (minimum volume: 0.2 mL) of serum FROZEN in plastic vial. 
Reference Values <93 ng/mL
Reference values apply to all ages. 
Analytic Time 3 Days 
Day(s) Test Set Up Monday through Saturday 
CPT Code(s) 86316