Questions for OR nurses/techs....

I am new to coding and am working in a hospital doing coding for same day surgeries, cath lab cases, and others. I want to know if OR nurses could tell me what supplies are typically used for open hearts, heart caths, TKA's, T&A's, as well as any others anybody can think of. I am trying to be sure that I code everything that would be used but don't know all of the names so I can't seem to find the items in the document that I find them in (to code)... Thanks!