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Article
June 2, 1934

THE INTERPRETATION OF ERYTHROCYTE COUNTS

JAMA. 1934;102(22):1853-1854. doi:10.1001/jama.1934.02750220031014
Abstract

A recently published series of observations on the blood of healthy persons by Walters1 at the University of Kansas offers some features for careful consideration by the physician who deals with blood examinations. The erythrocyte count, quantity of hemoglobin and volume of packed cells in eighty healthy men between the ages of 20 and 30 and determined after a half hour period of inactivity in the recumbent position were compared with those of eighty other subjects sampled after random uncontrolled activity. Resting subjects showed a significantly lower red cell count, hemoglobin and packed cell volume. Similar observations were made on twenty men, first after random activity and then one hour later after complete muscular inactivity in the recumbent position. Red cell count, total hemoglobin and total volume of packed cells showed a significant decrease following inactivity, while corpuscular volume, corpuscular hemoglobin and corpuscular hemoglobin concentration did not undergo any

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