Reference Range
FII (Factor 2) 50-129 IU/dL
FV (Factor 5) 50-135 IU/dL
FVII (Factor 7) 50-170 IU/dL
FVIII (Factor 8) 50-158 IU/dL
FIX (Factor 9) 50-166 IU/dL
FX (Factor 10) 50-171 IU/dL
FXI (Factor 11) 50-164 IU/dL
FXII (Factor 12) 50-183 U/dL*
Bovine Chromogenic FVIII (Factor 8) 50-144 IU/dL
Human Chromogenic FIX (Factor 9) 50-125 IU/dL
*Note: Factor XII is reported as U/dL as the assay is not traceable to a WHO international standard