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Medically reviewed by Last updated on Feb 4, 2024.

What do I need to know about angiography?

Angiography is a procedure to look at blood vessels in your body. Angiography can be used to look for narrowing, a blockage, or problems with your blood vessels. It can also be used to check blood flow to organs such as your heart, lungs, or kidneys. Angiography can help your healthcare provider diagnose or treat a medical condition.

How do I prepare for angiography?

Your healthcare provider will tell you which medicines to take or not take on the day of your procedure. You may be told not to eat or drink anything for 2 hours before your procedure. Tell your provider if you think you are pregnant, breastfeeding, or if you have ever had a reaction to contrast liquid.

What will happen during angiography?

Your healthcare provider will insert a catheter into a vessel in your groin. The catheter will be moved to the area where the picture will be taken. Contrast liquid will be injected. The liquid helps the pictures show up more clearly. You may feel a warm sensation when the contrast liquid is injected. You will need to lie still when the pictures are taken.

What will happen after angiography?

Your healthcare provider will remove the catheter and place pressure where the catheter was inserted. Rest for 2 to 6 hours after the test, and do not bend where the catheter was placed.

What are the risks of angiography?

Angiography may increase your risk for bleeding, infection, or a blood clot. You may have an allergic reaction to the contrast liquid. The reaction may include nausea, vomiting, a rash, or abdominal pain. In rare cases, a reaction may lead to heart or kidney problems, or become life-threatening.

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.