The increasing popularity of transfusion as a therapeutic measure has brought with it the need of a test whereby the suitability of donors may be rapidly determined. There are already many instances on record of serious symptoms or death following the rapid breaking down of blood after transfusion. The evidence is convincing that such instances may be avoided if a donor is selected beforehand by means of certain simple tests carried out in vitro. Unfortunately these, as performed at present, require time and labor. It is with the aim of providing a test rapid and simple enough to be employed even in emergencies that the following method has been devised:
Collection of the Blood.
—The blood is taken from the patient and the prospective donors in a 1:10 mixing pipet, such as is used in counting leukocytes. The pipet is rinsed beforehand with 10 per cent, sodium citrate in
ROUS P, TURNER JR. A RAPID AND SIMPLE METHOD OF TESTING DONORS FOR TRANSFUSION. JAMA. 1915;LXIV(24):1980–1982. doi:10.1001/jama.1915.02570500028011
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