Hope my dad's ok until morning

I visited him at his nursing home. He said he was really thirsty the other day and today, seemed more lethargic than usual. He sipped a drink but not enough. I asked if he'd like to go ER if he's dehydrated and he said no. But thinking back, he did have cold hands and he never really does. And his cheekbone looked a bit pronounced and ive not noticed that before. And looking that up online, they can be sgns of severe dehydration.

I didn't think or know that though. My mom's calling first thing in morning to try to get ambulance for him. I did tell nurse as I left to please have the doctor check him in morning for an evaluation as he also has a chronic fungal infection on his back. The doctor comes on Monday. I told her we weren't sure if he's dehydrated too , to please have doctor check that. But now my anxiety is high 😕 if I should have made him go in to the hospital. Ughhhh. I hope things are ok until morning 😟