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Complement Components 3 and 4
0050149
Copy Utility
Ordering Recommendation
Use to monitor rheumatologic disease.
Mnemonic
C3C4
Methodology
Quantitative Immunoturbidimetry
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum separator tube, Plasma separator tube, Green (Lithium heparin)
Specimen Preparation
Allow specimen to clot at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube and freeze. (Min: 0.6 mL)
Storage/Transport Temperature
Frozen.
Unacceptable Conditions
Specimens left to clot at refrigerated temperature. Specimens exposed to repeated freeze/thaw cycles.
Remarks
Stability
Ambient: 48 hours; Refrigerated: 8 days; Frozen: 2 weeks (avoid repeated freeze/thaw cycles)
Reference Interval
| Test Number |
Components |
Reference Interval |
||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Complement Component 3 |
|
|||||||||||||||||||||||||||||||||
| Complement Component 4 |
|
Interpretive Data
Compliance Category
FDA
Note
Hotline History
Hotline History
Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
N/A
CPT Codes
86160 x2
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0050150 | Complement Component 3 | 4485-9 |
| 0050155 | Complement Component 4 | 4498-2 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- C3 & C4
- C3/C4
Complement Components 3 and 4
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