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.