Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

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


Sunquest Test Code:
YOAB      Geisinger Epic Procedure Code: YOAB         Geisinger Epic ID: 45240

Specimen type:
Serum or CSF
Preferred collection container:
Specimen required:
2 mL serum collected in plain, non-serum separator tube OR CSF in sterile, leakproof container; minimum 1 mL
Special notes:
See Specimen Processing Notes.

Specimen processing instructions:
Serum must be separated within 48 hours of collection 
Transport temperature:
Specimen stability:
Room temperature: 72 hours. Refrigerated: 28 days. Frozen:28 days

CPT code(s):
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.
Automated Nanoliter Scale Immunoassay
Quest test code 92421, Athena test code 4686
Clinical significance:
Purkinje cell (Yo) Antibody is mainly found in patients with paraneoplastic cerebellar degeneration and is associated with breast, ovarian, and other gynecological cancers. Some patients with ovarian cancer have low titers of Yo antibodies in the absence of cerebellar degeneration. This semi-quantitative assay may be useful in monitoring therapeutic responses in select cases.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Set up Monday-Friday; report available 3-5 days    
Performed stat? No
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