DM

Spanish medical abbreviation: DM

My guess (this is a case history for a cardiac patient): Diabetes mellitus. Meaning it's the same in English, of course. Sheesh.

ICC (insuficiencia cardiaca congestiva)

Spanish medical acronyms (like French ones) are all totally different from the English; German acronyms tend to be more similar. It makes medical translation exciting though.

Spanish: ICC = insuficiencia cardiaca congestiva = congestive heart failure (more or less)

Anyway, I got this one from the Spanish/English glossary [pdf] of the California Department of Social Services. Thanks, California!

TnT

Spanish, English: TnT

Medical abbreviations are relatively easy to track down in German (thanks to Beckers), but in Spanish it's a lot harder.

TnT is troponine T (e.g. [here] at Scripps [cardiac markers]), but it's the first I'd hit it, and the letters "tnt" aren't all that Googlable. Finally found it in Spanish here, and that page is pretty rich in useful cardiac-related Spanish terminology.

My work would probably be a lot easier if I invested just a little money into some reasonable dictionaries - but they're so darned heavy.