This is a special test of extraordinary clinical value to demonstrate the coronary arteries that supply the heart. When diseased these blocked arteries can cause a heart attack. For this test. An echocardiogram and ECG are required in addition to the Blood urea and serum creatinine. Your heart rate and blood pressure will be checked in our clinic after a detailed history of your ailments by our Specialist Nurse. If the heart rate is high you would be given a medication to reduce your heart to bring it to a range of 60 to 70 beats which gives vey good quality images. If the heart rate cannot be reduced by the single medication dose at our clinic you may need to take additional doses overnight and return the next day for your scan .