Jo-1 Antibody, IgG

Sunquest Code:JOIGG  
Epic Code:LAB6371Epic Name:JO 1 AB IGG
Synonyms:Anti-Jo-1 Antibody, IgG; Histidyl-tRNA Synthetase Antibodies; Synthetase Antibody; Jo 1 Antibody IgG; Jo1 Antibody IgG
Methodology:Multiplex flow immunoassay
Turnaround Time:Performed Mon-Fri; results reported the same day.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.9 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel))
Causes for Rejection:Gross hemolysis.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1 mL, 0.35 mL minimum. Store in refrigerator up to 7 days.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Specialty Core  (UMMC-East Bank)


Reference Range:


Less than 1.0 AI


1.0 AI or greater


Antibody index (AI) values reflect qualitative changes in antibody concentration that cannot be directly associated with clinical condition or disease state.



Use:Presence of Jo-1 antibody is found in patients with pure polymyositis, pure dermatomyositis or myositis associated with another rheumatic disease or with interstitial lung disease.

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