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Geisinger Medical Laboratories Test Catalog
COMPLEMENT C3 |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2063 Geisinger Epic ID: 14837 | |
SPECIMEN COLLECTION |
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Specimen type: |
Plasma or Serum | |
Preferred collection container: |
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Specimen required: |
2 mL of serum or plasma; minimum 0.2 mL. | |
Patient preparation: |
Fasting specimen preferred. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. | |
Transport temperature: |
Refrigerated (preferred). Room temperature or frozen specimen also acceptable. | |
Specimen stability: |
Room temperature: 4 days. Refrigerated: 8 days. Frozen: 8 days. | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
90-180 mg/dL. | |
CPT code(s): |
86160 | |
| 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. | ||
Test includes: |
Complement C3. | |
Methodology: |
Immunoturbidity |
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Synonyms: |
C3
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Clinical significance: |
Decreased C3 may be associated with acute glomerulonephritis, membranoproliferative glomerulonephritis, immune complex disease, active systemic lupus erythematosus, and generalized autoimmune processes. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |