Spontaneous coronary artery dissection (SCAD) Diagnosis. To diagnose spontaneous coronary artery dissection (SCAD), your doctor may review your signs and symptoms, and order several tests. The tests are similar to those used to evaluate other heart attacks, such as electrocardiograms and blood tests to detect blood damage.
when did the Classical era start and end. There are actually Classical eras for different types of art, but I'll just deal with music since that's my specialty! The Classical Era in music lasted from 1750 to about the year 1800.
The major classical civilizations the era follows are Han China (ending in 220), the Western Roman Empire (in 476), the Gupta Empire (in the 550s), and the Sasanian Empire (in 651). The post-classical era itself was followed by the early modern era, and forms the middle period in a three-period division of world history: ancient, post-classical, and modern.