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J Am Vet Med Assoc. 1990 May 15;196(10):1654-8.

Electrolyte abnormalities associated with diarrhea in rhesus monkeys: 100 cases (1986-1987).

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California Primate Research Center, College of Veterinary Medicine, University of California, Davis 95616.


Serum electrolyte values from 100 rhesus monkeys with diarrhea were reviewed. The most frequent finding was hyponatremia (88%), with hypochloremia next most frequently detected (80%). Metabolic acidosis was less common (59%) and usually associated with high anion gap values. Associations between electrolyte abnormalities and age, housing, or case outcome were not found. Bacteriologic culturing was performed on fecal specimens from 90 monkeys. Campylobacter coli or C jejuni alone was isolated from 42 (46.7%) specimens, C coli and Shigella flexneri were isolated from 25 (27.8%) specimens, and S flexneri alone was isolated from 6 (6.7%) specimens. A pathogen was not isolated from 17 (18.9%) specimens. Hyponatremia, hypochloremia, acidosis, and high anion gap values were most severe in monkeys infected with Campylobacter sp, either alone or with concurrent S flexneri infection. Serum sodium concentrations less than 132 mEq/L and serum Cl concentrations less than 93 mEq/L were consistently associated with Campylobacter sp infection.

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