Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

ZIC4 ANTIBODY

ORDERING INFORMATION:
Sunquest Test Code:
ZIC4      Geisinger Epic Procedure Code: 84182.04         Geisinger Epic ID: 35847

SPECIMEN COLLECTION
Specimen type:
Serum (preferred) or CSF (acceptable but not the preferred specimen)
Preferred collection container:
Alternate Collection Container:
6 mL red-top (plain, non-serum separator) tube
Specimen required:
2 mL serum (preferred) or CSF (also acceptable); minimum 0.5 mL.
Special notes:
CSF (2 mL; minimum 0.5 mL) in sterile-leak-proof container is acceptable but is not the preferred specimen.

SPECIMEN PROCESSING
Specimen processing instructions:
Serum must be separated from cells within 48 hours of collection. 
Transport temperature:
Refrigerated.
Specimen stability:
Room temperature: 72 hours. Refrigerated: 28 days. Frozen: 28 days.
Rejection criteria:
Stability limits exceeded.

TEST DETAILS
Reference interval:
Accompanies report.
CPT code(s):
83520
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:
Automated Nanoliter Scale Immunoassay
Synonyms:
Anti-Zic4, Anti-Zic4 Ab
Quest test code 4689, Athena test code 127
Clinical significance:
Anti-Zic4 antibody is usually found in patients with paraneoplastic cerebellar degeneration and is associated with small cell lung carcinoma. This semi-quantitative assay may be useful in monitoring therapeutic responses in select cases.

Performing Locations

Athena

Technical Lead: Michael Weaver    
Frequency: Set up: Tues, Fri; Report available: 3-5 days.    
Performed stat? No
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