Don't support life: A transplant should only be performed when kidney failure is concluded to be permanent. Kidney function is measured from the creatinine levels in the blood and urine. If no urine is made, there is no function. The nephrologist (kidney doctor) judges when function must be supplemented with dialysis or a transplant, based on the measures, and patient's symptoms (fluid retention, high potassium, etc).
Answered 7/25/2013
6k views
Little/No function: A kidney transplant is needed when the kidneys do not function sufficiently to sustain life. In practice once someone starts dialysis they become eligible--but a number of criteria need to be met. In addition, rules for listing patients in the United States are that just before dialysis is needed, when the renal function is very low (a GFR under 20cc/min), a patient could be transplanted.
Answered 6/10/2014
5.9k views
CKD5: Either already on dialysis or vey close to it ie the calculated GFR (a measure of kidney function) is less than 20.
Answered 7/8/2015
5.9k views
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