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14.3.3 eta, Rheumatoid arthritis-994

Test info

Test name:

14.3.3 eta, Rheumatoid arthritis

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

14.3.3η Protein ETA
Augurex

Useful for:

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

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.5 mL
Submission of the minimum volume does not allow for repeat testing

Collection instructions:

Immediatley following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within 45 minutes of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube - 5 mL

Alternate processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within 45 minutes of sample collection
Transfer the serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Refrigerated – 3 days

Ambient – 3 days

Frozen – 7 days

Freeze/thaw cycles x6

Reason for rejection:

Hemolysis
Lipemia

Performance

Performing lab:

LabCorp Burlington (504550): R-NX

Days set up:

Performed 1 day per week

TAT:

6 - 12 days

Method:

Enzyme-linked immunosorbent assay (ELISA)

Clinical and Interpretive info

Reference ranges:

<0.2 ng/mL

Billing

CPT codes:

83520

Tracking

Date created:

07/13/2020

Revised date:

10/20/2023

Review date:

10/20/2023