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Test Code MISC6ATHENA4689 Recombx® Zic4 Autoantibody Test

Department

SEND OUTS

Reference Lab Test Number

4689

Collection Requirements

Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.

Alternate Specimen: CSF collected in a sterile leak-proof container.

Primary Collection Container

Red (No Gel)

Alternate Collection Container

Gold (SST)

Transport

Serum or CSF refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Serum must be separated from whole blood within 48 hours of collection.

Stability

Serum:

Ambient: 72 hours

Refrigerated: 28 days

Frozen: 28 days

CSF:

Ambient: 72 hours

Refrigerated: 28 days

Frozen: 28 days

Minimum Testing Volume

0.5 mL

Reference Range

Serum <1:50

CSF <1:1

Methodology

Automated Nanoliter Scale Immunoassay

Reported

4-6 days

CPT Codes

83520

Additional Information

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.