![]() ![]() There is no apparent difference in the process of precipitate formation whether salvarsan solutions and the blood are mixed in vivo or in vitro. In thirteen experiments upon dogs and rabbits, no trace of a precipitate was found in the arterial blood, the blood from the left ventricle, the right ventricle, or the lungs. The results of injections of alkaline solutions of salvarsan, as pointed out before, are quite different from those produced by the acid solutions. ![]() Blood squeezed from the lungs showed in eight out of ten cases at least as much precipitate as was found in the blood from the right ventricle. In ten out of twelve animals (rabbits and dogs), blood from the right ventricle contained a definite precipitate, and in a number of these cases the amount of precipitate was large. On the other hand, blood obtained from the right ventricle and the lungs showed a very different condition. Blood taken from the left ventricle at this time (at autopsy) also showed no precipitate in a large majority of cases in eight experiments there was no precipitate, in three a doubtful trace of precipitate, and in one a definite small amount. At the end of injections of an acid solution of salvarsan, a precipitate was seldom present in the arterial blood. Furthermore, after injections of the acid solution, there is a striking difference between the blood from the right side of the heart and that from the left side. Intravenous injections of alkaline solutions of salvarsan produce no precipitate in the blood, while injections of the acid solution nearly always give a precipitate. ![]() There is, in the first place, a very striking difference with regard to precipitate formation between the acid and alkaline solutions of salvarsan when injected intravenously. The results of these experiments are definite. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |