Case Ph Density Osmolality Glucose Protein Microscoby 24 hour Urine volume 24 hour protein TPR FENa FEK Ca/Cr Ca excretion       Mosm/L mg/dl mg/dl   ml/d mg/m2/h         mg/kg/d Patient 1 6.5 1015 967 1000 Negative Normal 1100 2.1 92 0.4 2.4 0.16 2.1 Patient 2 6 1010 804 1000 Negative Normal Spot 0.18 95 0.2 5.7 0.18 ND Mother 5 1030 862 300 Negative Normal 1500 2.5 94 0.6 4 0.09 0.8 Father 5 1025 922 0 Negative Normal 1200 1.2 91 0.4 3.2 0.12 1.2

Table 1: Demografic features of the probands showing tubulary function analysis.