To me, this is just another example that further proves the lack of useful education in nursing schools today. Something as simple as placing an IV is a task learned through repetition. It is a shame that while a nursing student is bombarded with theory, cultural sensitivity and nursing diagnosis...they can expect roughly ten minutes of IV training that most likely will be provided by a computer simulation (not even a real homosapien).
My advice to the OP, don't take your frustration out on the ICU nurse that solved your problem. This will accomplish nothing. Be proactive and go down to the ER where you can get with a few nurses that can provide some pointers. Then practice, practice, practice. With enough repetition, you will become competent in a skill that should have been covered in school.