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TOTAL WATER AND CHLORIDE CONTENT OF DEHYDRATED RATS.

T G Drake1, C F McKhann, J L Gamble

  • 1Department of Pediatrics, Harvard Medical School, Boston.

The Journal of Experimental Medicine
|October 30, 2009
PubMed
Summary
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Upper intestinal obstruction causes body water loss primarily from fasting and fluid deprivation. While some water is lost into the stomach, tissue cell dehydration is minimal in this study.

Area of Science:

  • Physiology
  • Gastroenterology
  • Metabolic Studies

Background:

  • Upper intestinal obstruction presents unique physiological challenges.
  • Understanding body water and electrolyte balance is crucial in obstructive conditions.

Purpose of the Study:

  • To investigate the causes and extent of body water loss in pyloric obstruction.
  • To differentiate between water loss due to fasting and fluid secretion.

Main Methods:

  • Experiments conducted on rats with induced pyloric obstruction.
  • Measurement of body water, solids, and chloride ion content.
  • Analysis of gastric contents.

Main Results:

  • Fasting and water deprivation account for over half of body water loss in early pyloric obstruction.

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  • Water loss into the stomach contributes to excess water reduction, but tissue cell dehydration is minimal.
  • Total body water loss was 12.6% within 12 hours; 28.3% of chloride ion was lost, primarily in gastric contents.

    • Conclusions:

    • Body water loss in pyloric obstruction is complex, involving fasting and fluid secretion.
    • Tissue cell dehydration is not a significant factor in the early stages.
    • Lower intestinal obstruction has minimal impact on body water content.