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Geisinger Medical Laboratories Test Catalog
ANTI-U3 RNP AB (FIBRILLARIN) |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB1323 Geisinger Epic ID: 53217 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Alternate Collection Container: |
6 mL red-top (plain, non-serum separator) tube
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Specimen required: |
1 mL serum; minimum 0.5 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Room temperature. | |
Specimen stability: |
Room temperature: 7 days. Refrigerated: 14 days. Frozen: 60 days. | |
TEST DETAILS |
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CPT code(s): |
86235 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Methodology: |
Radioimmunopreciptation assay (RIPA) |
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Synonyms: |
Quest test code 34262, Anti-U3 RNP
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Clinical significance: |
The U3-RNP (Fibrillarin) particle is thought to participate in the first step of pre-ribosomal RNA processing. Anti-U3 RNP antibodies have been shown to be highly specific for patients with SSc | |