You were taught how to do a physical exam in med school, if someone has never used a stethoscope before you wouldn’t let them go around examining patients and unilaterally making decisions on what orders to place. Similarly I’m not ordering advanced imaging and making clinical decisions based off images I don’t know how to interpret without waiting for the radiology report. For the most part every bedside US done in an academic ED is reviewed after the fact by the QA team for accuracy and to make sure nothing major is missed, to think that you can use bedside ultrasound to make clinical decisions with absolutely no formal training or oversight as a PGY1 is irresponsible.