Blood Transfusion

My name is Sabrina. I own a lovable amazing cat who has helped me through a lot. His name is Lenny. He is very ill he has a blood parasite and his red blood cell count is at 8. A transfusion is needed at 15. He is only 4 years old and really needs a blood transfusion to survive and I really need the help! I want to do everything I can to help keep him alive.