CT Angiogram – Preparation

Fast from food for 2 hours prior to your CT appointment.

Drink only water in this time.

In the hour before your appointment it is important to hydrate, please drink 1 litre of water.

There is no need to hold the water, you may use the bathroom.

If you have had a previous contrast reaction or are aware of an allergy to iodine, let our staff know urgently.


If you have been given different fasting instructions, please follow them instead, some CTs are more complex and require additional or different preparation.

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