MODEL RELEASED. Donor kidney preparation. Surgeon removing fat from a donor kidney in a kidney- shaped bowl prior to a transplant operation. The kidney is being stored in ice to maintain its condition. Donor kidneys must also be flushed with perfusion solution and have their blood vessels prepared prior to transplantation. Kidney transplantation is the simplest and most commonly performed organ transplant, and it has a very high success rate. It is done to replace kidneys with chronic kidney failure. This view is part of image sequence M575/050-56 showing a kidney being prepared for transplantation.