Specimen Requirements
Title
Chromogranin A
Specimen Requirement
Collect SST/0.5 mL serum, allow to clot for 30 minutes then promptly centrifuge and send.
Methodology
Time-Resolved Amplified Cryptate Emission Cryptate Emission (TRACE)
Stability
Room temp: 7 days, Refrigerated: 14 days, Frozen: 3 months
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
3-5 days
Clinical Use
An aid in the detection and monitoring of neuroendocrine cancers including pheochromocytomas, medullary thyroid carcinomas, functioning and nonfunctioning islet cell and gastrointestinal amine precursor uptake and decarboxylation tumors, and pituitary adenomas. A possible adjunct in outcome prediction and follow-up in advanced prostate cancer.
Test Code
CHROW