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Epic Code LAB152 C3 Complement, Blood Level

Important Note

C3 and C4 can be run off of same 1 mL of serum or plasma.

Test Name Alias

C3 Complement Blood Level | C3 | 8487

Interface Order Alias

10020

Quick Collect

+S/R

Collection Instructions

Specimen Collection: Blood

 

Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel) or 5.0 mL Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 4.5 mL

Minimum Volume to Collect: 2.0 mL

Neonate Volume to Collect: 1.0 mL

Capillary collect ok? Yes

Microtainer acceptable: Yes

 

Collection Instructions:

  • Avoid hemolysis
  • After collection, gently invert tube 8-10 times.
  • C3 and C4 can be run off of same 1 mL of serum or plasma.
  • Specimen should be processed within 2 hours – See Processing Instructions.

Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Plasma or Serum
  • Centrifuge/Spin: Yes
  • Aliquot: Yes
  • Processing Instructions:
    • Plasma is preferred specimen type
    • Green Tube/Plasma: Centrifuge after collection.
    • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
    • Minimum volume: 1.0 mL plasma or serum
  • Transport Temperature: Refrigerated

Specimen Stability

Ambient: 8 hours

Refrigerate: 72 hours

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available daily, usual TAT 1 day.

Reference Range

90 - 180 mg/dL

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Methodology

Immunoturbidimetric

CPT

86160

CDM Code

3028616003

Epic Test ID

1230100421

LOINC

C3 : 4485-9

Mayo Access Code

SHO8487

Reviewed Date

3/7/2024