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performed. A negative cross match says to the recipient, you are not likely to reject the donor organ and the operation should be performed. If we look at the cross match in this way, the positive and negative results make sense to all concerned. A well matched kidney is one in which the blood type between the donor and recipient are
negative. Application of good matching studies in clinical kidney transplantation has allowed for excellent results using living donor and deceased donor organs and has permitted safe kidney transplantation for thousands of patients with end-stage renal failure.