Diagnosis of Stones
Laboratory Evaluation

Evaluation all patients should have a urine analyzed and cultured if indicated. Microscopic hematuria or blood in the urine will often be present helping to establish the proper diagnosis. Patients with associated urinary tract infections will also exhibit white blood cells in the urine or pyuria and bacteruria unless the calculus is completely obstructing the infected side. Urinary crystals or crystalluria if present will provide important information as to the etiology of the renal stone. A serum chemistry survey and a complete blood count (CBC) are also helpful in screening patient for renal disease, malignancy or metabolic disorder.

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