Over the long run, however, the policies of the one-drop rule and segregation, in conjunction with other factors such as a long tradition of racial nationalism and white liberal support, generated a counter-reaction that led to a very different form of racial politics.
Learn about these ultrasound-like tests of the heart -- and find out what to expect -- here. Cardiac Catheterization. Cardiac catheterization -- also called a coronary angiogram -- means running a catheter into your heart. It's done to help doctors see what's going on in there, and whether they need to operate. Here's where to learn about it.
Tests. The goals of testing for heart disease are to distinguish between symptoms that are heart-related and those that are due to another condition.eart disease that is causing few symptoms may be detected during a visit to a health practitioner for nonspecific symptoms such as fatigue. The healthcare provider may order a variety of blood and other tests to investigate possible causes of the person's symptoms. Laboratory blood tests.