Hi all,I'm a new grad and I just started my first job - ER in big city hospital. Yesterday was my first day and my preceptor told me I would place an IV. I've done this a lot in my final practicum with a couple of seasoned nurses in another ER in the same city. Those nurses and every single nursing instructor, have said that you must start the IV distally and then move proximally, because if you blow the vein proximally it might infiltrate if you start in the same vein more distally. You also want to preserve the bigger veins in case of an emergency. This makes sense and that's what I've been doing. Coming back to me starting this IV, my preceptor told me you always start proximally and move distally because afterwards you can't draw bloods off that arm if you, lets say, place the IV in one of the veins in the hand. I don't understand this rationale at all. Why not just draw off the other arm then? Can someone please explain this to me?Thanks!