CT Scanner Frequently Asked Questions

Is the CT scanner safe?

The scanners use x-rays to obtain the pictures, which are delivered in relatively high doses in CT scanning. This can be of harm to pregnant patients therefore ask your doctor for advice if you think you may be pregnant.

Is the dye that is given radioactive?

No, the dye contains iodine, which is detected by the x-rays. It is safe for you to carry on your normal life after the scan, unless you are advised otherwise.

Can I drive or operate machinery?

Yes, although you may be asked to remain in the department for a short time to ensure that the dye has not made you feel unwell. After this time, you can go back to normal daily activity.

Do I have to prepare for the examination?

Often yes, you will be sent either some dye to take the night or day before and you will often be given more dye to swallow at the time of the investigation. This dye allows better visualisation of the stomach and bowel. You may also receive an injection of dye at the time of the scan.

Can I take my tablets as normal?

Yes, you should take your normal medication unless advised otherwise. If there are any questions, you should contact the department prior to the scan.

I feel claustrophobic, will I be able to tolerate the examination?

Usually yes, the scanner itself is not particularly enclosed and is often in a spacious room. Very infrequently, patients feel that they cannot tolerate passing through the scanner, although it is very quick. If you have concerns about this, you should contact the department and perhaps arrange a visit before the scan.