Forgive my ignorance as I just completed my EMT class last week but I have a question. Is a hemothorax and a cardiac tamponade the same? I thought a hemothorax was when fluid invaded the plural space and caused pressure that kept the lung(s) from being able to inflate, and a tamponade was a build up of fluid in the pericardium? Keep in mind I'm a newbie, so don't thrash me too hard...