Overwhelmed.

I'm facing a write up for the first time. I have worked on the same floor for 5 plus years and while we constantly work over-ratio and without reasonable breaks, yesterday I actually had the appropriate number of patients. Two very confused patients, one whom was combative and assaulting the numerous staff members throughout the morning, a bleeder whom I was pumping blood into, a newly diagnosed cancer patient (diffused mets) and her bereaved family too. I could hardly get out of combative's room and when I did it was too dash and try and care for my bleeder and relieve the bone pain in my CA pt. IV begins leaking in bleeder, second confused patient pulls out his line...the dr we all dread has 3/4 of my assignment. Now, it's time to discharge a patient I glance through his discharge orders-nothing about antibiotics at STR. I double check with the case manager and also confirm his OP dialysis is set up. She confirms no need for PICC to remain. I remove it for discharge.

Well, despite that he was being treated for renal issues and no infection IV antibiotics were in fact sent to the STR. I discovered this while giving report to the receiving nurse. I got a new PICC inserted and sent him out later than scheduled. I contacted patients wife to explain reason for delay and she was apologizing to me for leaving. The family had quit taking calls because they could not deal with combative patient anymore. Today a family member calls my manager to complain. She calls me at home to find out what happened. Yes, I made the mistake. Im sure it will result in a write up. Do I just sign it? I've not dealt with write ups previously. Just asking for input.