Hi Chris,
I checked and yes, manually selecting the UOM is part of the new regulation. Our other EMR, CareTracker (web based EHR with LOTS of bells and whistles) does the same thing with their script writer.
As for Bert's issue with the script writer, that is working as it should. There are two buttons you need to click for prescribing meds, "prepare" and "prescribe". The prepare button puts the med in the pending meds section. At this point the med is not officially prescribed yet. Once you hit that prescribe button, however, you are officially prescribing that medication. The following screen is just the delivery method for that medication (electronic, printed, or even no method if the medication was dispensed in house). Think of that prescribe button as a "sign off" button just for meds. Once you click it, you are making it official.