Advice
When in doubt, ask questions. You need not direct the questions to your boss; often times, co-workers can answer questions for you, and they're far more willing to do so than they seem. Health care is full of confusing acronyms and what-not, and occasionally the answers to your questions will surprise you. For example, I initially assumed that "DRG" was an abbreviation for "drug," but in reality it is something completely different.