Since there are certain risks associated with the procedure the following tests are performed to determine if angiography can be performed:

• Electrocardiogram –Tracks the heart’s rhythm by recording the electric impulses transmitted by the heart, thereby helping to detect and diagnose heart disease
• Echocardiogram or sound imaging - Helps to identify abnormalities in the heart muscle and valves, and find any fluid that may surround the heart.
• Nuclear Stress test - A nuclear stress test helps to measure blood flow to the heart by injecting a small amount of a radioactive substance either before or during exercise on a treadmill. If any part of the heart muscle does not receive an adequate supply of blood, the radioactive substance will show up as a light spot on the image detected by a special device
• The patient and doctor will have a detailed description of the possible risks and complications of the procedure after which the patient must sign an informed consent for the procedure.
• The patient must abstain from food and fluid from 6-8hours before the test.
• The patient can be admitted the night before the procedure or on the day of the procedure as either an inpatient or outpatient.
• The medical team reviews the complete medical history of the patient including medications, allergies and medical conditions such as diabetes.
• A physical examination of the patient is performed to check vital signs such as blood pressure and pulse.
• The bladder is emptied and the patient is asked to change into a hospital gown and to remove contact lenses, eyeglasses, jewellery, hairpins and other items.
• An intravenous line is inserted into a vein in the arm to provide sedative, fluids and medications.
• The area of the arm or groin where the catheter is to be inserted is shaved and cleaned after which the patient is taken to a room resembling an operation room for the procedure.
• The procedure can be done on an emergency basis or can be scheduled in advance.