Serum/urine levels of creatinine and cystatin C.

<p><i>Absolute creatinine in severe patients increased 3 fold over next 48 hours and the levels continue to increase</i>. <i>However</i>, <i>both serum and urinary cystatin C levels remain steady over time</i>. <i>Change in creatinine and cystatin C represent the absolute change in these two functional markers from the baseline values</i>. <i>Data are presented as median with IQR</i>.</p><p>Serum/urine levels of creatinine and cystatin C.