If you have an iodine allergy or have had a reaction to IV contrast dye in the past, you can still have a CT scan with IV contrast. This is because modern IV contrast dye is less likely to cause a ...

Leigh went in for the CT scan March 7, 2024 — that's when she suffered a fatal allergic reaction ... Contrast dyes are generally iodine- or gadolinium-based, Verywell Health explains, adding ...

CT colonography is a test that uses CT scans to check ... Gastrografin is a type of dye containing iodine. It helps to make the scan pictures clearer. It also acts as a laxative and may give you ...

A CT urogram ... clearly on the scan. You have the injection through a small thin tube called a cannula, into your arm. The cannula stays in place until after your scan. This is in case you have any ...