Not exactly a psych hospital, one time I took myself to a hospital after having a bit of mental breakdown after my dad had died (advanced age, natural causes). I later found out I was having a panic attack. It was the first time I had gone to a hospital as a patient as an adult.
After a brief triage, a friendly Filipino nurse and her nursing student observing, also a nice Filipina, came to get me and another patient from the post triage ER waiting room. They came to one of the ER rooms and told the other female she needs to put her gown on but could leave her underwear on and the nurse and doctor would be in.
When we got to another ER room they drew the curtains and told me they were going to assist me get changed into the gown and ready for the doctor. I did come to the hospital a little stressed out so I didn't think this was entirely strange we had brought one patient to a room and left. They gently helped me remove my clothes, including my underwear, to put the gown on. I overheard the nurse telling the assistant that this is the time to inspect the patient's skin for any signs of damage and to make notes, and that the receiving ward would also do a skin check if the patient ends up getting admitted to the hospital.
After getting changed into the gown and put in the bed, they said they would be back with a nice warm blanket because I mentioned I was cold. When they returned they set up the standard ECG monitoring equipment, finding veins for a blood sample draw and administering IV fluids. After a few minutes of the IV setting in I told them that I had to urinate and if I could use the bathroom nearby, they mentioned no need to move me and said they were able to get a urine sample anyway. They had the bedpan if it was number 2 or the ole urinal jug. With a light reassuring tap on the thigh from the nurse saying, "if you didn't have to pee, we had also brought a catheter to get a sample." The nursing assistant was ready with placing my penis into the jug and I felt one of the most relieving emptying of my bladder ever. The nurse also did mention to the assistant this would be the time to do a quick check of a patient's perineum, and rectal region if she didn't check while helping change.
The rest of the ER visit was mostly the doctor checking the lab tests, monitoring my vitals, and a quick auscultation and palpation of the abdomen. Once I got my blood pressure to go down and other vitals stable. He gave me some literature on managing stress and anxiety, a phone number to call if I was experiencing more feelings of stress and anxiety, and to follow up with my PCP in a few weeks.
I appreciated the care I was given, but I did wonder later if I was being observed a little too closely for my protection, or if my case was just a good one for the nurse to train another. Overhearing some of the instructions and insights by the nurse made it seem like the latter. The visit itself was probably only 2-3 hours between triage and discharge, but it was certainly a memory of being a patient in the hospital I wouldn't soon forget.