Magnesium studies in patient 1
| Day 0 | Day 3 | Day 5 | |
| Urine volume (litres) | 0.764 | 0.815 | 0.630 |
| Serum magnesium (mmol/l) | 0.37 | 0.59 | 0.63 |
| Serum creatinine (μmol/l) | 37 | 34 | 36 |
| Urinary magnesium (mmol/l) | 0.04 | 6.5 | 4.02 |
| Urinary creatinine (μmol/l) | 3.33 | 4.6 | 3.86 |
| Tubular reabsorption of magnesium (%) | 99.85 | 91.86 | 90.56 |
| Fractional excretion of magnesium (%) | 0.15 | 7.14 | 9.44 |