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February 1940

USE OF COMBINATION MICROHEMOPIPET: WITH SPECIAL REFERENCE TO SEDIMENTATION RATE, PACKED CELL VOLUME AND ICTERIC INDEX IN PEDIATRIC PRACTICE

Author Affiliations

CHICAGO
From the Department of Pediatrics, University of Chicago.

Am J Dis Child. 1940;59(2):310-321. doi:10.1001/archpedi.1940.01990130093006
Abstract

The use of the newly devised combination microhemopipet, elsewhere described (Kato1), facilitates the simultaneous determinations of the erythrocyte sedimentation rate, the packed cell volume and the icteric index with an amount of blood small enough (50 cu.mm.) to be easily obtained by the capillary puncture method used in routine examinations of the blood. The arguments in favor of using capillary blood in preference to venous blood for these tests have been repeatedly discussed by numerous authors, so that a reiteration of its advantages at this time is superfluous; nor is it necessary to summarize the various types of micropipets or tubes now steadily multiplying on the market. Mention should be made, however, of the micromethod recently devised by Smith,2 which may be regarded as a microadaptation of the Wintrobe tube (Wintrobe3), with the addition of a mixing pipet. Exhaustive reviews, particularly of the various methods for the

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