Anti-Jo-1
Test ID:
704714
CPT code:
86235
Synonyms:
Polymyositis/t-RNA Synthtase
Clinical Use:
Evaluate patients suspected of having polymyositis, dermatomyositis, or polymyositis-scleroderma overlap syndrome
Test Information:
Anti-Jo-1 antibodies are present in approximately 20% to 30% of patients with adult-onset polymyositis syndromes. They are present in >65% of patients with both myositis and interstitial lung disease. In such patients, the presence of anti-Jo-1 antibodies may be predictive of a response to steroid treatment. Testing for ANAs is not adequate for the detection of anti-Jo-1 antibodies.
Specimen Type:
Serum
Requested Volume:
0.6 mL
Minimum Volume:
0.3 mL
Container Type:
Red-top tube or gel-barrier tube
Storage Instructions:
Room temperature
Stability Requirements:
Temperature |
Period |
---|---|
Room temperature |
14 days |
Refrigerated |
14 days |
Frozen |
14 days |
Freeze/thaw cycles |
Stable x3 |
Rejection Criteria
Hemolysis; icterus; lipemia; bacterial contamination
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