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  • Title: A new method for quantitating hemorrhage induced by rattlesnake venoms: ability of polyvalent antivenom to neutralize hemorrhagic activity.
    Author: Ownby CL, Colberg TR, Odell GV.
    Journal: Toxicon; 1984; 22(2):227-33. PubMed ID: 6729841.
    Abstract:
    Polyvalent (Crotalidae) antivenin was tested for its ability to neutralize the hemorrhagic activity of two crotaline venoms when mixed with them prior to injection. Hemorrhage was measured by two methods. In the first method an intradermal injection of venom produced a hemorrhagic spot which was quantitated by measuring diameters. In the second method the amount of hemoglobin in a muscle extract was measured after i.m. injection of venom. The results show that both methods are useful for quantitating hemorrhage induced by Crotalus viridis viridis and Crotalus atrox venoms. Antivenin neutralized the hemorrhagic activity of 240 micrograms C. v. viridis venom and 120 micrograms C. atrox venom per 0.05 ml. The question remains, can antivenin neutralize this amount of venom when injected independently of venom.
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