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.
Researchers are developing new ways to check your heart health. Two tests are available now; an interesting third is on the horizon. Corus CAD test (or CardioDx) This blood test checks 23 genes to suggest whether or not you have heart disease. It may help doctors need fewer tests that have more risks, including angiograms, one study shows. It takes 3 days to get your results.