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Test Code
ETA33
Test Name
14-3-3 eta Protein
CPT Codes
83520
Expected Turnaround Time
6 - 12 days
Clinical Utility
14-3-3 eta protein is a joint-derived, proinflammatory mediator that is implicated in the joint erosion process and pathogenesis of RA. Serum 14-3-3 eta is elevated in both early and established RA.
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells within 45 minutes of collection.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Room Temperature

3 days

Refrigerated

3 days

Frozen

7 days

Freeze/Thaw Cycles

Stable x6
Causes for Rejection
  • Hemolysis
  • Lipemia
Methodology
Enzyme Linked Immunosorbent Asasy (Elisa)
Reference Intervals

See patient report.
Alternate Names
  • 14.3.3η Protein ETA
  • Augurex
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Varies
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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