Hi There - if you do decide to go - bring your current meds or a typed listing of the meds, dosage, strength etc.
I also had an easy-to-read brief summary of my husband's UC situation for the past year and a plan of action that his doctor (who also had privileges at the hospital I brought him to) along with her telephone # that she wanted the hospital to perform. (Her associate was there that evening and she was there ever day thereafter.) As he was admitted and remained in the hospital for 5 1/2 days.
In our case when I brought him to the hospital he was in excrutiating out of his mind pain, constant frequency and urgency, sleep deprived, and unable to even talk and comprehend due to the pain level. Fortunately when the Dr came in to see him he already was on IV with pain medication.
When the Dr came in to see my husband and read over my synopsis first it channeled his questions to my husband to be relevant to why he was there instead of asking a ton of unnecessary questions and didn't waste the Dr's time and my husband who was just so worn out.
(The typed listing of meds was handy for the nurse to enter to the chart and other personnel who came in.)
Also depending on the time of day or night you go to the ER can make the difference how long you are waiting before a nurse triages you. Some people have indicated they call ahead and inquire and basically stay home until they know the waiting time is a reasonable amount of time. Nothing worse if you are in a bad flare and need the bathroom constantly and or in a lot of pain to try and sit in a waiting room to be called. We totally lucked out and my husband was taken immediately as we hit it perfectly. If it was wall to wall people he could not have done it. If and when I ever need to take him in again (hopefully never) I will think about calling ahead if he is ever in that same level of distress again.
Of course an ambulance transport goes to the front of the line and is wheeled into ER even if they are stacked up in the ER hallway. I witnessed 4-5 the day I was there with my husband waiting for a room to open up for his admittance. So I would not be adverse to calling an ambulance if he was ever in that awful situation again.
Good luck.