The urea is crazy high, without a corresponding increase in creatinine.

You realise this could be a GI bleed.

You begin fluid resuscitation, crossmatching blood, reversing warfarin but it is too late…and are relieved that this is all a bad dream. You can start again. Like the end of Mario 2 on the NES

https://pathways.nice.org.uk/pathways/acute-upper-gastrointestinal-bleeding#content=view-node%3Anodes-resuscitation-and-initial-management