Before a Cerebral Angiogram

Can I eat or drink before the procedure?

In some hospitals you may be given instructions not to eat or drink for a few hours before the procedure. This main reason for this is just in case general anaesthesia or sedation is needed during the procedure. Anaesthetists ideally do not like you to have food or drink in the stomach if you are to have general anaesthesia as there is a risk of regurgitation in to the lungs.

Having said this, the great majority of angiograms do not require general anaesthesia or sedation and so in many other hospitals you are allowed to have a light breakfast before coming to hospital and drink clear fluids until the examination. Exact instructions will be given to you before your angiogram.

Should I take my normal medications?

You should take your medication as usual unless instructed otherwise (this includes any aspirin-based or anti-platelet medication, for example clopidogrel). You can take your normal medication with small sips of water.

I have allergies. Can I still take the test?

It is important to inform the staff if you have any allergies. It is especially important to mention allergies to:

Iodine or iodine based contrast agents.

Latex.

Plasters.

Cleaning solutions such as chlorhexidine.

Can I have an angiogram if I am pregnant?

Cerebral angiograms involve small doses of radiation, but usually directed towards the head. The dose to any developing foetus is very low, and can be further lowered by wearing protective lead clothing. Angiograms are sometimes performed in emergency settings where there may be a danger to the mother if they are not performed. However, if the procedure can be avoided by performing an alternative test, or delayed until after the pregnancy this is preferred. If you are pregnant, trying to get pregnant, or if there is any chance that you could possibly be pregnant however unlikely, please inform the staff.

Are blood tests necessary?

At least a few days before the procedure you may have routine blood tests performed, although this is not always necessary if you are in good health otherwise.