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Article
July 5, 1952

RAPID BLOOD GROUPING AND Rh TYPING OF LARGE NUMBERS OF PERSONS: A CARD TECHNIC FURNISHING A PERMANENT RECORD OF THE ORIGINAL TESTS

Author Affiliations

Valhalla, N. Y.
From the Division of Pathology, Grasslands Hospital, and the Department of Laboratories and Research of Westchester County, Valhalla.

JAMA. 1952;149(10):928-930. doi:10.1001/jama.1952.72930270002008a
Abstract

Large amounts of blood, of known group and Rh type, to be used for transfusions, might be needed for the treatment of persons severely injured as a result of many kinds of disasters, e. g., fires, explosions, and wrecks. Even under conditions of civilian practice, sizeable amounts of blood are needed quickly to treat patients with burns, bleeding gastric ulcers, hemorrhage, and many other conditions. Therefore, it becomes increasingly important that one be prepared by knowing the blood group and Rh type of large numbers of persons who can be called on to furnish quickly the types of blood needed.

Efforts, in the past, to secure this information have been known as plans for "mass grouping." However, so many errors occurred in mass grouping, which can be eliminated today, that perhaps it would be better if this term were dropped. These former errors were usually caused by the use of

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