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Test Code FACTOR H Factor H Complement Protein

Important Note

Must be processed and frozen within 30 minutes of collection.

Clinical System Name

Factor H Complement Protein


Complement Factor H

Sample Requirements

Specimen: Whole Blood

Container(s): Lavender/EDTA

Preferred Vol: 2.0 mL

Minimum Vol: 0.5 mL


Note: Send to the Lab immediately after collection.

Processing Instructions

Reject due to: Slight to moderate hemolysis ok, gross is not acceptable. Thawed specimen.

Spin: Y

Aliquot: Y

Temp: -70 C

Storage location: Spin blood immediately, transfer 1 mL plasma to a plastic tube affixed with large computer label. Deliver specimen to the freezer send-outs rack. Plasma should be frozen within 1/2 hour of blood draw.


Off-site collection: Spin blood immediately. Plasma should be frozen within 1/2 hour of blood draw.


Specimen Type Temperature Time
  Room temp N
  Refrigerated N
  Frozen    1 yr



STAT Performed TAT
N Drawn daily; performed F up to 2 w


Performing Laboratory

National Jewish Medical Center



National Jewish Medical Center

Complement Laboratory - Room M013
1400 Jackson St
Denver, CO 80206

Phone Number: (800) 550-6227



Reference Range


160-412 mcg/mL




Method: Radioimmunoassay

Analytical Volume: None specified


CPT Codes



Send Out Instructions


Reference Test Name: Factor H Level (B-1H)
Reference Test Number: FH
Instructions: Send out on dry ice via FedEx. If additional information is needed, contact National Jewish Medical & Research Center at (800) 550-6227 or (303) 398-1184