Complement C3

Cleveland HeartLab C, Test

CPT Code: 86160
Order Code: C2481
ABN Requirement: No
Specimen: Serum
Volume:  1.0 mL
Minimum Volume:  0.4 mL
Container: Gel-barrier tube (SST, Tiger Top)



  1. Collect and label sample according to standard protocols.
  2. Gently invert tube 5 times immediately after draw. DO NOT SHAKE.
  3. Let tube stand in a vertical position to allow blood to clot 30 minutes.
  4. Centrifuge at 1300 rcf for 10 minutes at room temperature.

Special Information: Separate serum from cells ASAP.

Transport: Store serum at 2-8°C after collection and ship the same day per packaging instructions provided with the Cleveland HeartLab, Inc. shipping box.


Ambient (15-25°C): 4 days
Refrigerated (2-8°C):
8 days
Frozen (-20°C):
8 days
Deep Frozen (-70°C):
8 days

Causes for Rejection: Specimens other than serum; improper labeling; samples not stored properly; samples older than stability limits

Methodology: Turbidimetric Immunoassay (TUI)

Turn Around Time: 4 days

Reference Range:

Age mg/dL
All Ages 86-166


Clinical Information: Evaluation of immunologic disease or complement deficiency.