A CT scan with contrast is a diagnostic test that uses x-rays and a contrast agent to create images of your internal organs, bones and tissues. While highly beneficial in many cases, CT scans with contrast can produce negative effects.
Cancer Risk
As with all CT scans, radiation exposure during a CT scan with contrast can potentially raise your lifetime risk of developing cancer, as the Mayo Clinic notes.
Pregnancy
According to the Mayo Clinic, CT scans with contrast can pose elevated risks to pregnant women, as a fetus may be more susceptible to radiation. Women should inform their doctor about a confirmed or suspected pregnancy before having a CT scan.
Allergic Reactions
As the National Cancer Institute explains, in rare cases the contrast agent used during the CT scan may produce allergic reactions. While reactions are typically mild, it is possible to experience severe symptoms such as shortness of breath and swelling.
Contrast Reactions Risk Factors
According to the Mayo Clinic, you are more likely to suffer negative effects from the contrast agent if you suffer from heart disease, kidney disease, diabetes, asthma, or a thyroid disorder.
Bottom Line
Patients considering a CT scan with contrast need to consider potential risks and benefits. A CT scan may certainly cause negative effects; however, as MedlinePlus points out, patients who are exhibiting symptoms of disease are likely to suffer more negative effects from not having a CT scan, as the scan could be instrumental in diagnosing and treating their condition.
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