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Coronary Angiography Test Procedure

An angiogram test helps your doctor to find if you need treatment such as angioplasty or stent, coronary artery bypass surgery (CABG) or medical therapy.

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Coronary angiography is the test to find if your coronary arteries are blocked or narrowed. Coronary angiography procedure that uses X-ray imaging to see your heart's blood vessels. An angiogram test helps your doctor to find if you need treatment such as angioplasty or stent, coronary artery bypass surgery (CABG) or medical therapy.

Cardiac catheterization is often done along with Coronary angiography. This is the procedure where it diagnosed and treat heart blood vessel condition. A coronary angiogram, which helps diagnose heart condition is the most common type of coronary angiography.

During the coronary angiography, a type of dye that is visible through an X-ray machine will be injected into blood vessels of your heart through a catheter. while a doctor can view how blood flows through your heart on the x-ray machine.

Why is Coronary Angiography test done?

Coronary Angiography

Visible symptoms of coronary artery disease such as chest pain jaw, neck or arm that can't be explained by other tests

  • Increasing chest pain.
  • You have congenital heart disease.
  • Non-invasive heart stress test or abnormal result.
  • Other blood vessel problems.
  • A heart valve problem that requires surgery.
  • Another injury. Angiograms are usually done after the non-invasive heart tests such as an electrocardiogram, an echocardiogram or a stress test.

Risks associated with getting a coronary angiography

The test is very safe and is performed by specialized doctor’s or by experienced team, but there is some risk associated which includes:

  • Bleeding.
  • Blood clots.
  • Injury to the artery or vein.
  • A small risk of stroke.
  • A very small chance of a heart attack.
  • Low blood pressure.

How to Prepare

The test is scheduled in advance and giving you time to prepare. In some cases, coronary angiograms are performed on an emergency basis. The doctor often uses a CT scan and MRI before the coronary angiograms test.

The general guideline includes:
  • Don't eat or drink anything 8 hours before the test.
  • You should be accompanied by someone as you may feel dizzy or light-headed for the first 24 hours after the cardiac angiography.
  • Ask your doctor whether to take your normal usual medication.
  • If you are diabetes then ask your doctor if you can take insulin or other medication before your angiogram.

Coronary Angiography test

  • If you're allergic to seafood.
  • Let inform your doctor, in the past if you've reacted to contrast dye.
  • If you are pregnant, inform your doctor in prior.

What happens during the test?

Before the angiograms, your healthcare team will ask you question about your medical history, including allergies and current medication you are taking. The team will also perform some physical examination to check your blood pressure and pulse. You also have to empty your bladder before the test.

For the procedure you have to lie on your back on the table, the table will be little tilted during the procedure. X-ray cameras will move over your head and chest to take a picture from many angles. You may be given a sedative through the IV to help you relax, but you will stay awake.

Your doctor numbs a spot on your groin or arm and inserts a catheter into an artery and up to the heart. The catheter shouldn't cause any pain and you shouldn't feel it moving through your body. The dye will go through your arteries doctor can monitor it on the x-ray screen. when a dye is inserted a slightly burning or flushing sensation can be felt. X-rays are taken when the dye goes through the artery. Your doctor may ask you to hold the breath or cough. As the dye moves through your blood vessels your doctor can observe its flow and identify any blockages or constricted areas. During your angiogram, depending on doctor’s discovery you may have the additional procedure at the same time such as balloon angioplasty or stent placement to open up a narrowed artery. The entire process most often lasts for 60 minutes, if the additional procedure is conducted than it may take a longer time.

After the procedure, you may stay in the hospital for several hours or overnight depending on your procedure. you will be asked to drink fluid to avoid dehydration and to flush the dye from the kidney. one week follow up is required after the procedure.


Magnus Medi blogs are purely meant for information purpose. It contains only general information and discussions about health and its related subjects. It is not a medical advice and should not treat as such. The words and other content provided in this blog, and in any linked materials, are not intended and should not be construed as medical advice. The opinions and views expressed on this blog are referred by a healthcare site and from experienced medical practitioners.

If the reader or any other person has a medical concern, you should consult with your health care provider or seek other professional medical treatment. Never disregard professional medical advice or delay seeking it. Or you can contact us our executive will help you get the second opinion from renowned doctors.

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