Complement C4

Test Code: TD_3585
CPT Code(s): 86160

$20

Test Details

Alternative Name(s)

C4
C4 complement

Test Includes

Complement C4

Methodology

Roche COBAS immunoturbidimetric

Rejection Criteria

Gross hemolysis

Reference Range(s)

10-40 MG/DL

Specimen Requirements

Preferred Specimen

Serum separator tube

Minimum Volume

0.5 mL serum

Sample Stability

2 days room temperature
8 days refrigerated
3 months frozen

Transport Temperature

Refrigerated

Collection Instructions

Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Refrigerate.

Alternative Specimen

3 mL serum from a plain red top tube. Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Refrigerate.