Complement C3 Nephritic Factor
2009380
 
Ordering Recommendation
Marker of nephritis/prediction of glomerular nephritis.
Mnemonic
C3 NEP
Methodology
Qualitative Immunofixation Electrophoresis
Performed
Varies
Reported
17-21 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Plain red.  
Specimen Preparation
Allow blood to clot for 20 to 60 minutes. Transfer 1 mL serum to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.25 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Thawed specimens.  
Remarks
 
Stability
Ambient: Unacceptable; Refrigerated: Unacceptable: Frozen: 1 year  
Reference Interval
By report
Interpretive Data
Note
Test is not a quantitative measurement of antibody quality, but a qualitative measure of its activity in causing C3 conversion.
CPT Code(s)
86161
Components
Component Test Code*Component Chart Name
2009381Complement C3 Nephritic Factor
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
Performed at National Jewish