Brought my dad to ER and staff were overall kind and professional except for a nurse by the name of Brenda Phillips who was absolutely unprofessional, rude, arrogant, dangerous, and utterly incompetent. When she put an IV line in my dad's to get blood samples, blood was dripping all over the place and off of his fingers. It didn't bother her at all, and she let it drip all over the place and said the pad that she placed on my dad's lap is water proof so it is fine. While his blood is dripping for few min, his face turned white and his eyes rolled up. I was mortified and asked her to do something that he is not responsive and his eyeballs were uprolling, she stood in front of us and stare at the wall. I yelled at her but she didn't move and just looked at us!?!?! I ran out of the room and yelled for a nurse (while there is a RN standing in front of my dad). Residents and few others ran into the room and transferred him from wheelchair to the stretcher, connect him to the monitor--- BP was 50/40!!! We thought we were losing him at that moment........ ER residents swiftly took care him and gave him a bolus of NS. I told the team that I wanted Brenda Phillips be removed from my dad's care twice but she still came back to the room. I don't know if they didn't have enough nurses since it was in the middle of the night but I felt extremely uncomfortable of seeing her being part of my dad's care. Each time she came in, we were very nervous and uncomfortable. Her behavior and response (or lack of response) is absolutely unacceptable!!!