Specimen: 2 mL (0.5 mL min.) plasma from 1 Lavender Top (EDTA) tube. Ship frozen. DO NOT THAW. Proton pump inhibitor medications should be discontinued for at least 2 weeks prior to sample collection.
Stability (Room): N/A
Stability (Refrigerated): N/A
Stability (Frozen): 2 weeks
Price: Contact Medilab
Turnaround time (TAT): 5 – 15 days
Usage: Chromogranin A is the first line test for diagnosing Carcinoid tumors. It is used as a followup test for treated cases of Carcinoid tumors. It is useful as an adjunct in the diagnosis of other Neuroendocrine tumors including Pheochromocytoma, Pituitary adenomas and functioning & non-functioning Islet cell and Gastrointestinal APUD tumors.
Home Collection: Available
Pre-test Information: Proton pump inhibitor medications should be discontinued for at least 2 weeks prior to sample collection.