Sign in →

Test Code F H Ab Factor H Autoantibody Testing

Clinical System Name

Factor H Autoantibody Testing


Atypical HUS
F H Autoantibody

Factor H Antibody
Hemolytic -Uremic Syndrome, Atypical
HUS, Atypical

Sample Requirements

Specimen: Whole Blood

Container(s): Red

Preferred Vol:10.0 mL

Minimum Vol: 4.0 mL


Note: Draw blood in a plain, red-top tube. Gel separator is unacceptable.

Processing Instructions

Reject due to:  SST tubes or  Hemolysis

Spin: Y

Aliquot: Y

Temp: -70 C

Storage location: Allow blood to clot at room temp. Spin after roughly 30 min (or when blood is clotted). Aliquot 2 - 5 mL serum in 2 plastic tubes affixed with large computer labels. Place samples in the send outs -70 freezer rack.


Off-site collection:


STAT Performed TAT
N Collected daily 1 m


Performing Laboratory

University of Iowa



University of Iowa

5270 CBRB
Iowa City, IA 52242

Phone Number: 319-335-6623



Reference Range

Interpretive report provided.


Method: None ELISA

Analytical Volume: None specified


CPT Codes

83516 x18

Send Out Instructions


Reference Test Name: Factor H Autoantibody Testing
Reference Test Number: FH AutoAb
Instructions: Ship frozen on dry ice overnight via FedEx to the University of Iowa..