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Test Code Jo-1 Anti-Jo-1 IgG

Aliases

histidyl-tRNA Synthetase

Useful For

Aids in the diagnosis of inflammatory myopathies and antisynthetase syndrome.

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

2 mL

Container

Gold Top Serum Separator

Preferred Specimen

Serum

Acceptable Specimens

Serum:

  • Gold Top SST
  •  
  • Red Top


Plasma:

 

  • Light Geen Top (lithium heparin)

 

Reference or Target Ranges

<20

Reportable Units

RLU

Critical Value

Not defined for this assay

Reasons for Rejection

Hemolysis Threshold N/A
Icterus Threshold N/A
Lipemia Threshold N/A
Other QNS, contaminated, improperly labeled, improper specimen type

Specimen Stability

Ambient 48 Hours
Refrigerated (4°C to 8°C) 14 Days
Frozen(-70°C to 0°C) Indefinitely

Additional Information/Important Notes

Included in ANA Complete Profile and ANA Profile

CPT Codes

86235