So as usual, not a medical worker, but I got a somewhat strange but fun experience.

5 years back my Dad was in hospital for a stroke (don't worry, he recovered). In the same room was a man, about 50 years old or so, dying of bone marrow cancer. He was nearly paralyzed, his body was falling apart, but he was conscious and still got his wit. He took on an experimental treatment as a last resort essentially.

One day when he was alone in the room with my Dad, he asked my dad:

"How long more are you staying here?"

"Doctor says I can leave in a week"

"Look, I'm about to die. I can feel it. I'll die today or tomorrow... I need a favor. When I die, I want to contact you if the afterlife is real. Check the mirror (there's one on the table between the two beds), I'll try to show myself there. Use whatever method you can to try and summon me. If I succeed, please help me tell the world."

My dad agreed. The man died the next day as he predicted. Dad told me about their agreement, I gladly agreed. For the next few days we tried several different things; I made a crude Ouija board out of plywood, and even put another mirror where my dad can observe at all time. I tried burning offerings with his name, saying incantations I found online in front of the mirror, and so on. Well, we didn't get any response or any ghost sighting, but sure it was an interesting experiment.