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Continuous monitoring of blood volume changes in humansUse of on-line high-precision mass densitometry for the continuous monitoring of blood volume changes in humans was demonstrated by recording short-term blood volume alterations produced by changes in body position. The mass density of antecubital venous blood was measured continuously for 80 min per session with 0.1 g/l precision at a flow rate of 1.5 ml/min. Additional discrete plasma density and hematocrit measurements gave linear relations between all possible combinations of blood density, plasma density, and hematocrit. Transient filtration phenomena were revealed that are not amenable to discontinuous measurements.
Document ID
19880025094
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hinghofer-Szalkay, H.
(NASA Ames Research Center Moffett Field, CA, United States)
Greenleaf, J. E.
(NASA Ames Research Center Moffett Field, CA; Graz, Universitaet, Austria)
Date Acquired
August 13, 2013
Publication Date
September 1, 1987
Publication Information
Publication: Journal of Applied Physiology
Volume: 63
ISSN: 0161-7567
Subject Category
Aerospace Medicine
Accession Number
88A12321
Funding Number(s)
CONTRACT_GRANT: NASA TASK 199-21-12-07
Distribution Limits
Public
Copyright
Other

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