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The Diagnosis of Hemolysis by a Simplified Cr51 Determination
PHILIP C. JOHNSON, M.D.;
WILLIAM L. HUGHES, M.D.;
ROBERT M. BIRD, M.D.;
DANIEL R. PATRICK, B.S.
AMA Arch Intern Med. 1957;100(3):415-418.
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The technique of using hexavalent chromium for labeling red blood cells in vitro was introduced by Gray and Sterling, in 1950.1 In 1953, Ebaugh et al.2 showed that this method was a convenient way to approximate the survival of erythrocytes in vivo. Weinstein and LeRoy 3 were the first to publish data on Cr51-labeled red cells from nine patients with various hematological disorders. Several other authors 4-6 have presented similar data from patients with known hemolytic disease. It remains necessary, however, to review critically the usefulness of this test in clinical practice as a measure of increased erythrocyte destruction.
It has been shown in the normal subject that the disappearance of the radioactivity from the blood results from at least two variables, the linear loss of the red cells from the circulation due to senescence and an exponential elution of chromium from the tagged cells.2,7
. . . [Full Text PDF of this Article]
Author Affiliations
Oklahoma City
Radioisotope Service and Department of Medicine, Veterans Administration Hospital, and the University of Oklahoma School of Medicine.
Footnotes
Submitted for publication Feb. 4, 1957.
Present address of Dr. Hughes is University of Virginia Hospital, Charlottesville, Va.
This work was supported in part by The National Foundation for Infantile Paralysis and the National Institutes of Health Medical Student Research Fellowships.
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