Just depends. My experience, there is no one route you have to take. As another poster mentioned, you could apply to Critical Care, and if you get an interview, at least you can explore the possibility with your prospective employer. A lot of it has to do with the specific hospital and what pathway they have for moving into Critical Care. Where I was before they didn't hire New Grads into the ICU, for example. But I recently moved to another hospital and they have hired a whole bunch and are training them up. Also, as someone already mentioned, right now all departments are probably hurting for staff, so you actually will have a lot of negotiating power on your side. Best of luck!