I am just wondering if there are any nurses out there that have worked in both the ER and the ICU? If so which did you like better and why? I have never worked in the ER but i have worked in a general ICU and a CVICU and enjoyed both. I will be starting a critical care program soon and will have the opportunity to to choose to go back to working in an ICU setting or the ER. I've always thought that I would like the ER but since I have never worked in that area I am nervous.