Each transplant center determines who will and who will not be a kidney donor. There are no nationwide accepted guidelines for transplant centers to follow. It is generally felt that if someone has a risk of developing diabetes, there are a number of studies that suggest that diabetic kidney disease progresses more rapidly in someone with a single kidney than someone with two kidneys. Hence, it is common to exclude living donors who are at risk for diabetes or who have so-called “pre-diabetes”. You can certainly ask to be re-evaluated, but the center may decline to do so if they have made a decision already. The goal of living donation is to “do no harm” while trying to benefit the patient who needs a kidney. You have the right ask for re-evaluation, but this cannot be guaranteed.
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