Factor B Function Assay to National Jewish Health


Sunquest Code:PFBF  
Epic Code:LAB6282Epic Name:Complement Factor B Function
Methodology:Hemolytic assay
CPT Code:86161
Turnaround Time:Specimens are sent to reference laboratory Mon-Thur; results are reported within 4 weeks.


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:0.7 mL
Causes for Rejection:Thawed specimens. Samples store at -20°C. Gel barrier tubes are not acceptable.


Processing and Shipping

Specimen Processing:Allow specimen to clot at room temperature for 20-60 minutes. Centrifuge and aliquot 1 mL, 0.25 mL minimum within 2 hours of collection or ASAP. Store on dry ice at -70°C.
Shipping Instructions:Ship overnight on dry ice.
Test Performed at or Referral Lab Lab Sendouts  (National Jewish Health)
Referral Lab number:PFBF


Interpretive

Reference Range:123-426 units/mL


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