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Test Code C4 C4 (Fourth Component of Complement), Serum or Plasma

Performing Laboratory

Huntsville Hospital Laboratory

Methodology

Turbidimetric

Specimen Requirements

Container/Tube:

Preferred: Lithium heparin (light green-top)

Acceptable: Serum Gel

 Draw blood, spin down and send 1 mL (pediatric:  0.2 mL) of plasma or serum.

Specimen Stability Information

 

Specimen Type

Temperature

Time

Plasma,lithium heparin / Serum RT, spun

2 days

  Refrigerated, spun

8 days

 

Reject Due To

 

Hemolysis

Mild:

ok

Gross:

ok

Lipemia

Mild:

ok

Gross:

ok

Icterus

Mild:

ok

Gross:

ok

 

Reference Values

10-40 mg/dL

Day(s) Test Set Up

Monday through Sunday

CPT Coding

86160

Secondary ID

HHA1258

LOINC Coding

Test Name LOINC Code

C4 (Fourth Component of Complement), Serum or Plasma

4498-2