Complement, total-13316

Test info

  
Complement, total
  
13316
  
LAB13316
  
CH50
  
CH50
Total hemolytic complement
  

Evaluate and follow up SLE (systemic lupus erythematosus) patient's response to therapy; may predict disease flare in SLE; evaluate for complement component deficiency; evaluate complement activity in cases of immune complex disease, glomerulonephritis, rheumatoid arthritis, SBE, cryoglobulinemia. The CH50 assay mainly evaluates the classical pathway.

Specimen

  
Serum
  

Gold serum separator (SST) tube

  
1.0 mL
  
0.5 mL
  

Immediately following collection, thoroughly mix sample by gently inverting 5 times

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum
  4. Freeze
  

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

  

Red serum vial/tube, 5 mL

  
  1. Allow sample to clot
  2. Spin within two (2) hours of sample collection
  3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)
  4. Freeze
  

Frozen (strict) - 14 days

Freeze/thaw cycles - stable x 3

Ambient - NO

Refrigerated - NO

  
  • Specimen not frozen
  • Gross lipemia
  • Plasma specimen

Performance

  
LabCorp Burlington (001941): R-LC
  
Su - Fr
  
2 - 4 days
  

Quantitative liposome lysis by spectrophotometry

Clinical and Interpretive info

  

Age

Male (U/mL)

Female (U/mL)

1 – 30 d

Not established

Not established

31 d – 6 m

> 32

> 20

7 m – 17 y

> 39

> 39

> 17 y

> 41

> 41

Billing

  
86162
  
Result 4532-8

Tracking

  
03/29/2019
  
04/21/2022
  
12/21/2023