*For women: Weight-adjusted volume = Unadjusted volume × ((0.00583 × W) + (0.011 × H) − 1.12)
, where W is body weight in kilograms and H is body height in centimeters.
Still, it is generally enough to make a rough estimation of the needed contrast, since there are for example inherent standard deviations in the usage of creatinine or cystatin C in calculating GFR.
===Treating risk factors===