calculated kidney weight compensatory renal growth score A calculated measurement of the degree to which a change in the size of the remaining kidney after surgical removal of the other kidney can be attributed to compensatory growth, calculated as the ratio of the normalized weight of a single kidney at the time of surgical removal divided by the similarly normalized weight of the single remaining kidney at a specified period of time after removal. The normalized kidney weight is the weight of the kidney corrected for body weight using an empirically determined allometric scaling factor (i.e., an exponential factor which adjusts for the normal increase in kidney weight due to normal growth and development of the individual). Compensatory growth is the phenomenon in which the impaired function of one organ in a paired organ system or of part of an organ in a single organ system is followed by enlargement of the surviving organ or tissue so that functional capacity is maintained. Kidney is the paired organ which functions to maintain proper water and electrolyte balance, regulate acid-base concentration, and filter the blood of metabolic wastes. 2013-11-18T15:00:01Z clinical_measurement_ontology CRG score CMO:0001894 jsmith