which ethical principle is primarily being considered in deciding to prioritize the younger patient over the older patient for a kidney transplant?

A 45-year-old patient with end-stage renal disease has been on the waiting list for a kidney transplant. The patient’s condition is deteriorating and the medical team is considering prioritizing the patient for the next available kidney. However and there is a 25-year-old patient with a similar condition who might have a better long-term prognosis with the transplant.