The doctor tells Claudia Joy that kidney disease is "life altering, not life threatening", which is completely wrong. People die from kidney disease all the time.
Claudia Joy wouldn't have an access (fistula, graft) in her arm right away. She would've had to wait for three weeks for the incision to heal and then an access can take take anywhere from three to twenty-four months to mature. Claudia Joy would've had a catheter in her neck or upper chest when she first began dialysis.