Complement, total

Alphabetical Test listing

Complement, total-13316

  
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.

  
Serum
  
  
1.0 mL
  
0.5 mL
  
  1. Allow specimen to clot at room temperature for 15-30 minutes
  2. Spin 
  3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)
  4. Freeze

To avoid delays in turnaround time when requesting multiple tests on frozen samples, submit a separate frozen aliquot for each test requested.

  
  

Frozen (preferred) - 14 days

Freeze/thaw cycles - stable x 3

Ambient - 2 days

Refrigerated - 2 days

  
  • Specimen not frozen
  • Gross lipemia
  • Plasma specimen
  
LabCorp Burlington (001941): R-LC
  
Su - Fr
  
2 - 4 days
  

Quantitative liposome lysis by spectrophotometry

  

Age

Male (U/mL)

Female (U/mL)

1 – 30d

Not established

Not established

31d – 6m

> 32

> 20

7m – 17y

> 39

> 39

> 17y

> 41

> 41

  
86162
  
Result 4532-8
  
03/29/2019
  
11/11/2019
  
02/19/2021