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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.
Submit With Order
ARUP Consult®
Disease Topics
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 NameLOINC
2009381Complement C3 Nephritic Factor38387-7
* 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

Performed at National Jewish