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Test Findings




  • An increase in the urine pH suggests an abundance of base in the urine.
  • This is commonly a sign of infection with a urease-producing bacteria, which convert urea into the alkaline ammonia. Such urinary alkalinisation can result in the formation of struvite stones.
    • Causes of Alkaluria

    • Dietary - low carbohydrate diet
    • Urea-splitting bacteria - Proteus, Klebsiella, Pseudomonas, coagulase negative Staphylococcus
    • Metabolic alkalosis - alkaline ingestion, massive transfusion, dialysis, vomiting, diuretics, Cushing’s, Conn’s, 
    • Respiratory alkalosis - hyperventilation
    • Renal tubular acidosis
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