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Laboratory Test Directory

Complement Activity Enzyme Immunoassay, Total

Components

Name Method Department Units
Complement Activity, Total Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Send Out CAE units

Specimen Requirements

Serum Spun

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 1 mL
Stability

Room temperature - 2 hour(s)
Frozen - 2 week(s)

Specimen Preparation

  • Allow specimen to clot for one hour at room temperature
  • Centrifuge within 2 hours, separate supernatant and freeze
  • Avoid repeated freeze/thaw cycles

Reasons for Rejection

  • Collected in tube with gel separator
  • Thawed frozen specimen
  • Thawed and refrozen specimen

Comments

Ordering Recommendation: Initial screening for suspected deficiency in the classical complement pathway.

CPT Code

  • 86162