Investigations on dietary treatment of struvite urolithiasis: 3. Effect of an acidifying diet on acid-base- and mineral-balance of cats after acute urethral obstruction.

The effect of a commercial acidifying diet on acid-base-balance and urinary mineral concentration was compared in five healthy cats and five cats with urethral obstruction for six days after the removal of lower urinary tract obstruction. There were no significant differences in urine pH throughout the experiment between the groups. Blood pH was decreased in obstructed animals at the time of presentation at the clinic, but thereafter it did not differ from data from healthy cats on the same diet. The concentration of phosphorus and potassium in urine decreased, sodium and chloride did not change, while magnesium and calcium content increased.