PMID: 9646402Jul 1, 1998Paper

Investigations on the development of hyponatremia in older calves with diarrhea

Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
I LorenzW Klee

Abstract

The study involved 50 hospitalized calves (four weeks to five months old) suffering from diarrhoea and hyponatraemia (blood sodium concentration below 130 mmol/l). Starting from the day of admission blood, urine, and faecal samples were taken each morning and sodium and potassium concentrations were measured. In addition, blood and urine samples were taken in the evenings, if electrolytes had been given orally during the day. The obtained values from urine samples were compared with the plasma concentrations in order to check for inadequate renal excretion of electrolytes. Consistency of the faeces and visible blood admixture were the main criteria in the evaluation of electrolyte concentration in the 317 samples of faecal water. With one exception no inadequate renal losses of sodium were observed. Sodium and potassium concentrations in faecal water showed a distinct negative correlation. As the consistency of faeces grew increasingly normal, electrolyte contents of faeces approached those reported for adult cattle, i.e. potassium levels rose and sodium levels decreased. Visible blood admixtures had no significant effect on the sodium and potassium concentrations in the faeces. A distinct relationship between electrolyte conte...Continue Reading

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