Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/74964
Title: Anormalidades en la osmorregulación en ancianos
Other Titles: Abnormalities In Osmoregulation In The Elderly
Authors: Delaguna, Sjb
Henriquez, Ms 
Canal, Jml
Turon, Afd
Perez, Jfv
Leon, Pb
UNESCO Clasification: 320107 Geriatría
Keywords: Elderly
Thirst Test
Hypodipsia
Adh
Osmolarity, et al
Issue Date: 1991
Journal: Revista clínica española (Ed. impresa) 
Abstract: In the present work we study the modifications in hydrosaline metabolism which occured in two groups of healthy male individuals, one consisting of 15 young men (mean age of 20 years) and the other of 30 elderly subjects (mean age of 75 years) when the thirst test was performed for 48 hours. After performing the thist test we observed that the elderly were less thirsty than the young group and that the former presented more marked alterations in the hydrosaline metabolims. Thus, the elderly presented at the end of the test higher serum and urine sodium levels, a greater serum osmolarity and higher plasmatic ADH leves both basal and at the end of the test. However, inspite of all this, the elderly scarsely reduced their diuresis and urinary osmotic values were much lower (almost half) than the young subjects. The mechanism for which these alterations occure is probably multifactorial, in which the decrease in glomerular filtrate, the increase in filtration fraction, the proportional increase in medullar flux together with some tubular resistance to ADH action could intervene.
URI: http://hdl.handle.net/10553/74964
ISSN: 0014-2565
Source: Revista clínica española [ISSN 0014-2565], v. 189 (3), p. 106-109, (Julio 1991)
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