14-3-3 Protein, Spinal Fluid

Test Code
900865

CPT Codes
83520

Preferred Specimen
1 mL CSF collected in a sterile, plastic vial

Minimum Volume
0.6 mL

Instructions
1.) Obtain aliquot from second collection vial.
2.) Immediately place aliquot on ice.

Additional Information: Specimens that have not been kept refrigerated or which have been tested for other analytes previously, may give a false-positive result.

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 90 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed specimens

Methodology
Immunochemiluminometric Assay (ICMA)

Reference Range
See Laboratory Report

Clinical Significance
Evaluation of patients with rapidly progressive dementia to establish the diagnosis of Creutzfeldt-Jakob disease.



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.