One thing I learned recently that I never really thought about much, don't argue with the doc during a code. Recently during my ER rotation in PA school I went upstairs to step down unit for a code call. Primary nurse gave report as she went in to check on patient and he appeared to be having a seizure and the monitor was vtach. Ok, easy enough, the Vtach was not sustained and now the guy was alert, restless with some unifocal PVC's, couplets and 4 beat runs. Doc orders amiodarone 150mg IV and a RN and RT begin to argue that it was not Vtach but artifact from the guy being restless and refusing to give the amio. I pick up the original strip, look it over, yup, Vtach, no artifact to it. I hand it to the doc, tell him, yup, looks like Vtach to me. Super Nurse and RT-god glare at me and the nurse says "oh, your a student" very snide....to which I respond, yup, student PA, oh and 18 years ER experience, 2 years CVICU, past 8 years travel nurse, 30 or so different ER's from Norfolk to Hawaii, about a dozen Level 1 trauma centers and that strip is still Vtach lol. She would have been angry if the guy had not decided to have another symptomatic run of Vtach about this time and she finally comes on board with the doc and pushes the amio.
Moral, if you disagree with the doc the do so in a professional manner and discuss the options, don't become territorial and irrational.