There are no universal donor criteria. Each individual kidney transplant center determines who will and who will not be allowed to be a kidney donor. Some programs do not permit active smokers to be kidney donors. If you discontinue alcohol use, this should not pose a problem. Hence, you will need to contact the transplant center who is evaluating your brother and ask to be evaluated to be his donor. This is the only way you will find out if you are a possible donor.
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