My Daughter Has Al Amyloidosis ,she Has It In Her

My daughter has al Amyloidosis ,she has it in her kidneys and possible the heart . She is doing Diaylisis 3 times a week . She is now having to take 2 units of blood every 3 weeks . She has had the disease about 2 years . She has took blood about 7 times now how long can she keep taking blood ?