Complement Factor B - Testing no longer available. See Factor B Level to National Jewish Health (FBL)


Sunquest Code:ARMISC  
Epic Code:LAB4909Epic Name:Complement Factor B
Synonyms:Factor B; Properdin Factor B; CFB
Methodology:Radial immunodiffusion
Turnaround Time:Specimens are sent to the reference laboratory Mon-Sat; results are reported within 10-14 days.
Compliance:

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.



Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.8 mL
Container:Red (no gel)
[Alternate Containers: Red or gold (gel)]


Processing and Shipping

Specimen Processing:Allow sample to clot 30-60 min at refrigerated temperature. Centrifuge and aliquot within 2 hours of collection 1 mL, 0.3 mL minimum. Store in freezer.
Shipping Instructions:Ship on dry ice.
Stability:After separation from cells: 48 hours refrigerated; 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:51720


Interpretive

Reference Range:20-51 mg/dL


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