I’m sure it was a misunderstanding in education regarding how soon you’d die without dialysis. That or she’s refusing. In truth she wouldn’t likely die in that short of timeframe even without dialysis. But I figure that’s the hard deadline the doctors gave her to decide before she starts experiencing significant problems that may preclude her from changing her mind. Generally if you’re 4 days away from dying of kidney failure you have encephalopathy from uremia so bad that you’re not going to be making coherent social media posts. I’m not a fan of the fact that even the BBC ran this story uncritically.