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volume and density changes of biological fluids with temperatureThe thermal expansion of human blood, plasma, ultrafiltrate, and erythrocycte concentration at temperatures in the range of 4-48 C is studied. The mechanical oscillator technique which has an accuracy of 1 x 10 to the -5 th g/ml is utilized to measure fluid density. The relationship between thermal expansion, density, and temperature is analyzed. The study reveals that: (1) thermal expansion increases with increasing temperature; (2) the magnitude of the increase declines with increasing temperature; (3) thermal expansion increases with density at temperatures below 40 C; and (4) the thermal expansion of intracellular fluid is greater than that of extracellular fluid in the temperature range of 4-10 C, but it is equal at temperatures greater than or equal to 40 C.
Document ID
19860035263
Document Type
Reprint (Version printed in journal)
Authors
Hinghofer-Szalkay, H.
(NASA Ames Research Center Moffett Field, CA; Graz, Universitaet, Austria)
Date Acquired
August 12, 2013
Publication Date
December 1, 1985
Publication Information
Publication: Journal of Applied Physiology
Volume: 59
ISSN: 0161-7567
Subject Category
LIFE SCIENCES (GENERAL)
Funding Number(s)
PROJECT: FFWF PROJECT 4200
Distribution Limits
Public
Copyright
Other