Unstable angina is a condition in which your heart doesn't get enough blood flow and oxygen. It may lead to a heart attack. Angina is a type of chest discomfort caused by poor blood flow through the blood vessels (coronary vessels) of the heart muscle (myocardium).
That's false. They may recommend a hospital that specializes in a certain treatment or procedure but the patient has the right to choose as long as the doctor has practicing priviledges there.