[abstract] ABSENCE OF DIURESIS DURING A 7-DAY SATURATION DIVE AT 2.5 ATA N2-O2.

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[abstract] ABSENCE OF DIURESIS DURING A 7-DAY SATURATION DIVE AT 2.5 ATA N2-O2.

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Title: [abstract] ABSENCE OF DIURESIS DURING A 7-DAY SATURATION DIVE AT 2.5 ATA N2-O2.
Author: Nu, A; Kwon, O; Li, M; Randall, E; Goldinger, JM; Claybaugh, JR; Hong, SK
Abstract: Three male divers were studied for 2 days during each of the predive and postdive 1 ATA air control periods and for 7 days at 2.5 ATA (2.3 ATA N2 and 0.2 ATA O2). The chamber temperature was always maintained at a thermoneutral level. Urine samples were collected throughout the entire experimental period while venous blood samples were obtained twice during each of the predive, 2.5 ATA and postdive periods. Urine and plasma samples were analyzed for electrolytes, creatinine, and certain water-and salt regulating hormones. Average urine flow remained at 1,500 ml/day during both predive and 2.5 ATA periods; urine osmolality also remained constant at around 700 mOsm/kg. On the other hand, daily excretion of Na increased significantly from 139 mEq during the predive period to 178 mEq at 2.5 ATA (p<0.05) but returned to the predive level during the postdive period. In contrast, daily K excretion decreased progressively with a significant decrease during the postdive period (p<0.05) . Plasma chemistry remained unchanged except for a 7% reduction of total protein at 2.5 ATA (p<0.05) A quantitatively similar decrease was observed for hematocrit during the 2.5 ATA period. (This investigation was supported, in part, by the New York State Sea Grant NA86AADSG-045 and HL-28542.)
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held 6-11 June 1989. Hawaiian Regent Hotel, Honolulu, Hawaii, USA (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/6810
Date: 1989

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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