- All patients should have an initial urine analysis; the initial urine analysis for eligibility is: proteinuria grade 0, hematuria grade 0, and no abnormal sediment; any positive protein including trace values should be evaluated by a 24-hour urine; any other abnormality in the sediment or the presence of hematuria should be evaluated by a nephrologist for evidence of underlying renal pathology; patients may be eligible if the underlying cause of the abnormality is determined to be non-renal