Prior to a bone marrow transplant, you will undergo a comprehensive series of tests and procedures. This rigorous evaluation is designed to assess your overall health and current medical condition, ensuring you are physically prepared for the transplantation process. This preparatory phase may span several days. Additionally, a surgeon or radiologist will insert a central venous catheter (commonly known as a central line) into a large vein, typically located in your chest or neck. This long, slender tube is an essential component of your treatment, often remaining in place for its entire duration. Your transplant team will utilize this central line for the administration of transplanted stem cells, crucial medications, and necessary blood products.