My mom is in I.C.U and is on life support. Do you know how long they can keep her there?

Well as for in icu as long as the doctors feel they need to. At some point they will ask family what they want to do. Allot of times it comes down to the costs and what the insurances pay for her health care while in icu and on life support. So the answer is anywhere from 2 week to 2yrs or longer. They can't take her off life support until her closest next to kin . Being husband. Mother father and and kids of hers over age of 18 to 21 in some states give them permission or a court order signed from judge.