Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

CHROMOGRANIN A

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB2001         Geisinger Epic ID: 55722

SPECIMEN COLLECTION
Specimen type:
Serum
Preferred collection container:
Specimen required:
1 mL (0.5 mL minimum) serum collected in a red-top tube (no gel)
Special notes:
***SST unacceptable.***

SPECIMEN PROCESSING
Specimen processing instructions:
Centrifuge and separate from cells. Aliquot and freeze. 
Transport temperature:
Frozen.
Specimen stability:
Room temperature: 7 days. Refrigerated: Unacceptable. Frozen: 31 days.
Rejection criteria:
No-gel tubes. Serum separator tubes unacceptable. Specimens received refrigerated. Moderate to gross hemolysis, moderately to grossly lipemic, icteric.

TEST DETAILS
CPT code(s):
86316
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Methodology:
Chromatography/Mass Spectrometry
Synonyms:
CgA, Quest code 31912
CHRMNA
Clinical significance:
Chromogranin A (CgA) is used as an adjunct in the diagnosis of carcinoid tumors. Measurements of CgA are also used to assess disease progression, response to therapy, or recurrence after surgical resection.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up: Monday-Saturday. Report available: 3-5 days.    
Performed stat? No
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