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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
IGG, IGA, INDIRECT IMMUNOFLUORESCENCE, SERUM |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB1247 Geisinger Epic ID: 52913 | |
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: |
5 mL serum; minimum 3 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Centrifuge and aliquot. | |
Transport temperature: |
Refrigerated (cold packs). | |
Specimen stability: |
Room temperature: 48 hours. Refrigerated: 7 days. Frozen: Unacceptable. | |
TEST DETAILS |
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CPT code(s): |
88346, 88350 | |
| 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: |
Immunoassay |
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Synonyms: |
Quest test code 16690; IgG, IgA, In; Cutaneous Indirect
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Clinical significance: |
These studies are complementary diagnostic and prognostic tools for autoimmune blistering diseases, connective tissue disorders, and vasculitides. It is a semiquantitative technique whereby a double immunolabeling is performed to evaluate the presence and titer of circulating anti-epithelial cell surface, anti-basement membrane, anti-nuclear, and antineutrophil cytoplasmic antibodies. | |