Objective    To determine the changes of coagulation indexes of rabbits struck at different levels and sieve the traditional coagulation indexes

such as activated partial thromboplastin time (APTT)

prothrombin time (PT)

thrombin time (TT) and fibrinogen (FIB).     Methods    We used correlation analysis to precondition the data to reject indexes

and used stepwise discriminatory analysis to choose indexes and made the diagnosis by multiple linear discrimination analysis. Then

by random sampling we compared the correct diagnostic rate by 4 indexes with that by 3 indexes.     Results    The correct discrimination rate of blood coagulation function diagnosis in rabbits was up to 87.60% by the four indexes and 96.12% with the three indexes (APTT

PT and TT). The average correct discrimination rate of blood coagulation function diagnosis in 1 000-time random sampling was up to 83.07% by the four indexes and 85.16% by the three indexes.     Conclusion    Stepwise discriminatory analysis can be used to discriminate hemorrhage from thromboxane. The correct diagnostic rate gets higher when FIB was rejected.