C4bbpserplacnc
Key facts at a glance
- LOINC
- 4502-1
- Short code
- C4BP
- Synonyms
- C4b BP SerPl-aCnc
- Category
- chemistry
- Sample
- serum
- Container
- Serum separator tube (SST) or red-top clot tube; plasma may be collected in EDTA or citrate tubes depending on laboratory protocol
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- Enzyme-Linked Immunosorbent Assay (ELISA) or Radial Immunodiffusion (RID)
- Specimen volume
- 1-2 mL of serum or plasma (minimum 0.5 mL)
- Stability
- Serum/plasma stable for 8 hours at room temperature (15-25°C); 48 hours at 2-8°C; up to 30 days at -20°C or below. Avoid repeated freeze-thaw cycles.
- Hemolysis max
- 100
- Lipemia max
- 100
- Icterus max
- 50
- TAT
- 24–72 hours
- Order
- routine
Reference range
Reference range varies by laboratory and methodology; typically reported as a qualitative or semi-quantitative result. Consult the performing laboratory's reference interval for clinical interpretation.N/A
No special patient preparation required. Fasting is not necessary. Inform the clinician of any recent infections, autoimmune disease flares, or immunosuppressive therapy prior to specimen collection.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 15, 2026. · Read our editorial policy