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Complement Activity Enzyme Immunoassay, Total
0050198
Ordering Recommendation

Initial screening for suspected deficiency in the classical complement pathway.

Mnemonic
CH50
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Mon-Fri
Reported
1-2 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 specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.  
Unacceptable Conditions
Separator tubes. Specimens left to clot at 2-8°C. Specimens exposed to repeated freeze/thaw cycles. Non-frozen specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks  
Reference Interval
Effective May 16, 2011

60-144 CAE Units
Interpretive Data


Note
CPT Code(s)
86162
Components
Component Test Code*Component Chart NameLOINC
0050198Complement Activity, Total EIA4532-8
* 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
  • CAE
  • CAE total
  • CH100
  • CH50
  • Classic Complement Pathway Assessment-CH100
  • Complement CH100, Total
  • Total Complement
  • Total Complement CH100
  • Total Complement CH50
  • Total Hemolytic Complement Activity