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Fluid/electrolyte balance and cardiovascular responses - Head-down tilted ratsResults are presented on cardiovascular and fluid/electrolyte balance responses of rats to a 7-day-long whole-body suspension (WBS) with about 20-deg head-down tilt (HDT), followed by 7 days of recovery. Compared with horizontally positioned (N-HDT) rats serving as controls, the Na intake of HDT rats was significantly reduced during the first 3 days of HDT, and urinary and fecal Na loss exceeded the Na intake during days 5 and 6. Changes during the days of recovery showed adjustments and reestablishment of Na balance. Urinary K losses increased progressively during the 7 days of HDT, but, with the exception of days 1-3 of HDT, when the K intake was significantly reduced, the K balance was retained. Changes in cardiac responses (including elevations in mean, diastolic, and systolic arterial pressures) paralleled changes in fluid and electrolyte balance during the HDT period.
Document ID
19910052849
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Musacchia, X. J.
(Louisville, University KY, United States)
Deavers, D. R.
(University of Osteopathic Medicine Des Moines, IA, United States)
Meininger, G. A.
(Texas A & M University College Station, United States)
Date Acquired
August 15, 2013
Publication Date
February 1, 1990
Publication Information
Publication: Physiologist, Supplement
Volume: 33
ISSN: 0031-9376
Subject Category
Life Sciences (General)
Accession Number
91A37472
Funding Number(s)
CONTRACT_GRANT: NAG2-386
CONTRACT_GRANT: NSG-2325
CONTRACT_GRANT: NSG-2191
Distribution Limits
Public
Copyright
Other

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