i'm an ICU nurse working in a small hospital where the PPG does not allow us to insert arterial lines neither take ABG but i have done a lot (i mean A LOT) of ABG's and arterial line insertions and out of 10 i get a 9/10 success. i guess my experience in inserting IV access to new borns, neonates and pedia in my previous jobs helped a lot. I can also say that i am the one of the only two(2) nurses in our hospital who can do that. the problem is, some doctors are just intimidated at how good we are but i do not blame them coz when things gets bad, it's their license on the line. i'm just saying, if you have the opportunity to do such... go for it... as long as it does not compromise the patient's health.