RPPA
18 days
Enzyme-linked immunosorbent assay (ELISA)
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Linked to neuropsychiatric lupus. May help in diagnosis of systemic lupus erythematosus (SLE).
Serum
1 mL
Red-top tube or gel-barrier tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Room temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 60 days |