General rule in my family; when one of us has to stay in the hospital, someone stays with them 24 hours a day. Make sure everyone entering sterilizes their hands, check any meds they bring in, read the chart and make sure you understand the treatment plan from the doctor - make the general staff follow it. Your loved one is just a job to most of them.
I was unconscious after about three hours of agony. The morphine, demoral, and shock finally knocked me out for about fifteen hours. Part of the internal damage was my bladder. After five or so IV bags coursing thru me I awoke to a really bad everything. Most curios though was the huge swelling in my torso. I looked around for a pee bag or catheter and found none. I asked the nurse if they were monitoring my output of fluids and she replied "Of Course". I then asked what it was and she looked at the chart and ran out of the room. I then immediately got rushed into surgery.
Had I not asked, I would have died.