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Test Code LAB770 Autoantibodies to Jo 1, Serum

Reporting Title

Jo-1 Antibody

Methodology

BIO-FLASH Chemiluminescent Immunoassay

Useful for evaluation of patients suspected of having polymyositis. A positive result is consistent with polymyositis and suggests increased risk of pulmonary involvement of these patients.

Performing Laboratory

OhioHealth Laboratory Services-RMH Special Testing

Specimen Requirements

Draw blood in a gold-top serum gel tube(s). (Hemolyzed, icteric, Microbially contaminated or heat treated specimens are not acceptable.) Spin down and send 1 mL of serum refrigerated. Sample is stable refrigerated 5 days

Note:  A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

Specimen Transport Temperature

Refrigerate: OK

Frozen: OK

Reference Values

Negative:  <20 CU

Positive:  ≥ 20 CU

Day(s) Test Set Up

Monday through Friday day shift only

Test Classification and CPT Coding

86235