Is a CT scan dangerous?

Far more X-rays are involved in a CT scan than in ordinary X-rays, so doctors do not recommend CT scans without a good medical reason.

However, the amount of radiation a patient is exposed to is small, and therefore are unlikely to cause any long term harm.

The risk is greatest to those who are pregnant, as radiation exposure can cause harm to the fetus, and therefore CT sans are contraindicated in pregnant women, unless the benefits of performing the scan far outweigh the risks.

Risks are also greater in children, when compared to adults, and therefore a CT is only recommended if a child has a serious condition that puts them at greater risk.

Some patients may experience side-effects due to allergic reactions to the liquid dye injected into the veins.

In very rare cases, this dye has been known to damage already weakened kidneys.

It is important to let the X-ray doctors or technicians know if you have any allergies, asthma or kidney trouble, prior to having the X-ray dye injected.