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Depth of immersion as a determinant of the natriuresis of water immersionThe current study was undertaken to further assess the contribution of an immersion-induced hydrostatic pressure gradient on the redistribution of blood volume. The rate of sodium excretion by seated subjects was significantly increased by water immersion up to the chest and neck compared to waist immersion and controls. These results are consistent with the hypothesis that whereas immersion to the level of the diaphragm merely cancels the intravascular hydrostatic pressure gradient by providing an identical external gradient, immersion above the diaphragm level results in increased water pressure which tends to favor a shift in blood volume from the lower extremities.
Document ID
19750038383
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Epstein, M.
(Miami, University; U. S. Veterans Administration Hospital, Miami, Fla.; Howard Hughes Medical Institute, United States)
Miller, M.
Schneider, N.
(Miami, University; U.S. Veterans Administration Hospital, Miami, Fla., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Publication Information
Publication: Society for Experimental Biology and Medicine
Subject Category
Aerospace Medicine
Accession Number
75A22455
Funding Number(s)
CONTRACT_GRANT: NIH-RR-261
CONTRACT_GRANT: NGR-10-007-097
Distribution Limits
Public
Copyright
Other

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