In four horses (mares), the effect of atropine (1 mg/100 kg of body weight I. V.) and detomidine (4 mg/100 kg of body weight I. V.) on several electrolytes and other parameters in serum and urine was studied.A marked hyperglycaemia was noted in all cases; none of the investigated serum electrolytes, metabolites or enzyme concentrations changed significantly. An initial increase of PCV and RBC count was followed by a decrease.Increased production of urine accompanied by a significant increase in sodium excretion was noted in all mares. In two horses, small amounts of glucose could be detected in the urine.The arterial partial oxygen pressure showed a significant decrease, possibly due to the use of atropine.
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