Complement Component 1, Functional
0099078
Ordering Recommendation
Follow-up test for complement activity screening when CH50 is low or absent and AH50 is normal and high suspicion remains for complement deficiency.
Submit With Order
Mnemonic
C1
Methodology
Quantitative Hemolytic Assay
Performed
Varies
Reported
28-35 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 at room temperature for 20-60 minutes. Separate serum from cells and freeze on dry ice or at -70°C within 2 hours. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.25 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Separator tubes. Thawed specimens.  
Remarks
 
Stability
Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 year  
Reference Interval
By report
Interpretive Data
Note
CPT Code(s)
86161
Components
Component Test Code*Component Chart Name
0099078C1 Functional
* 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.
Cross References
  • C1 (Complement Component 1, Functional)
Performed at National Jewish