Complement C4

Overview

  • EPIC Code:
  • LAB151
  • Soft Test Code:
  • C4
Alternate Names
  • C4
  • C4 Complement
  • C4 Complement Antigen
  • C4 Complement Component

Specimen Collection & Preparation

Specimen Requirements:

-OR-

1.0 mL Plasma in a PST Mint Green Top Tube- Li Heparin
Minimum Volume:
0.25 mL Plasma*

* This volume does not allow for repeat testing

Processing Instructions:

Centrifuge and separate from cells within 6 hours of collection


Transport and Storage:
  • Ambient (18-24°C): 2 Days
  • Refrigerated (2-8°C): 8 Days
  • Frozen (-20° C or colder): 3 Months

    Avoid freeze-thaw cycles

Clinical Interpretation

Reference Range:

13 - 38 mg/dL


Methodology:
  • Immunoturbidimetric

Production Schedule

Sites Performed
  • Parkview Regional Medical Center
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Chemistry
Turn Around Time

Same Day/1 to 2 days


Coding & Compliance

CDM

01487581


CPT Coding

86160