It is always your choice not to have this test. But, it is important to understand the risks involved with this decision.
Heart disease that limits the blood supply to your heart, can exist even if there are no outward signs of disease. A heart condition left untreated can lead to serious health problems.
If you decline the procedure, your doctor can provide you with medicine and therapy based on your heart's condition, other tests and observations. With certain heart problems medication is NOT enough to keep your condition from getting worse and prevent stroke, heart attack, or even loss of life.