Your doctor has suggested you have a Nuclear Cardiac Stress Test. A Cardiac Stress Test is a test to show how your heart functions when your heart rate is increased. You will exercise or be given a certain medicine to increase your heart rate. A Nuclear Cardiac Stress test is a specialized test. A very small amount of a radioactive tracer is given in an IV.
Open space is any open piece of land that is undeveloped (has no buildings or other built structures) and is accessible to the public. Open space can include: Green space (land that is partly or completely covered with grass, trees, shrubs, or other vegetation). Green space includes parks, community gardens, and cemeteries. Schoolyards; Playgrounds
Talk:patent. This term is important because I ran across from this link: The first entry in this section is Patent Nonsense. The state of being open does not also mean obvious, despite the fact that the word obvious is given as a definition by some sources. In today's use of the word, neither does it mean easily understood or clearly understood.