Complement Factor H Level (B1H)

Abbrev Code:FHL   
Order Code:LAB6285Order Name:Complement Factor H Level
Synonyms:Factor H Level
Methodology:Radial immunodiffusion (RID)
CPT Codes: 86160 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Thur; results are reported within 4 weeks.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.7 mL
Container:Purple (EDTA)
Causes for Rejection:Thawed specimens. Samples stored at -20°C.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot plasma within 30 minutes of collection, 1 mL, 0.25 mL minimum. Store on dry ice or at -70°C.
Shipping Instructions:Ship on dry ice.
Stability:Stable for 1 year if stored at -70°C.
Test Performed at or Referral Lab Lab Sendouts  (National Jewish Health)
Referral Lab number:FHL


Reference Range:160-412 mcg/mL
Use:Follow-up test for complement activity screening when both CH50 and AH50 are low or absent.

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