Great thread. I'd like to change the topic for a moment. My eGFR is 27, last check. I've been lucky so far and not have had COVID-19 or the flu or food poisoning. What are the immediate actions to take for 4th stage CKD? Food poisoning is awful, I had it when my kidneys were healthy. Now, it could be a death sentence. And the flu, my husband has terrible flu, but I have not caught, it yet. I just went to convenient care to get tested for strep throat, COVID-19 19, and the flu. Waiting for results. The DR said you have to be careful about meds. Best to take Tylenol and drink lots of water (I do know that and rest). What prompts a stage 4 CKD person to go to the hospital for IV treatment? How do you know when kidneys are in a severe danger zone? Many people do not even know they're in kidney failure until they arrive at the ER. Thanks for your response.