A heart Cath is a procedure that is done to see if there are blockages to arteries supplying your heart with blood. The procedure is pretty simple - routine if you will. You are kind of placed in lala land - you dont feel anything.
Trilogy A trilogy is a set of three works of art that are connected, and that can be seen either as a single work or as three individual works. They are commonly found in literature, film, or video games.
Rainbow Six (novel) Rainbow Six is a techno-thriller novel written by Tom Clancy. It focuses on John Clark, Ding Chavez, and a fictional multi-national counterterrorist unit codenamed Rainbow, rather than Jack Ryan and national politics. There is a series of video games by the same name.