PREVIOUS QUESTION:

 

NEXT QUESTION:

 

How can radiation from a CT scan be harmful?

ANSWER

The risk is very low from a single CT scan. If you get a lot of them, or are concerned, talk to your doctor about the procedure’s potential dangers and benefits, and ask why the CT scan is necessary. The radiation may be more of a concern for children. And if you're pregnant, tell your doctor before the scan.

From: What Is a CT Scan? WebMD Medical Reference

SOURCES:

National Institute of Biomedical Imaging and Bioengineering: “Computed Tomography.”

Johns Hopkins Medicine: “Computed Tomography (CT or CAT) Scan of the Abdomen.”

National Cancer Institute: “Computed Tomography (CT) and Cancer.”

Food and Drug Administration: “Computed Tomography (CT).”

Mayo Clinic: “CT Scan.”

PLOS One : “Consistent Surgeon Evaluations of Three-Dimensional Rendering of PET/CT Scans of the Abdomen of a Patient with a Ductal Pancreatic Mass.”

American Cancer Society: “CT Scan for Cancer.”

Nature Communications : “Mutational Signatures of Ionizing Radiation in Second Malignancies.”

Reviewed by Louise Chang on December 22, 2018

SOURCES:

National Institute of Biomedical Imaging and Bioengineering: “Computed Tomography.”

Johns Hopkins Medicine: “Computed Tomography (CT or CAT) Scan of the Abdomen.”

National Cancer Institute: “Computed Tomography (CT) and Cancer.”

Food and Drug Administration: “Computed Tomography (CT).”

Mayo Clinic: “CT Scan.”

PLOS One : “Consistent Surgeon Evaluations of Three-Dimensional Rendering of PET/CT Scans of the Abdomen of a Patient with a Ductal Pancreatic Mass.”

American Cancer Society: “CT Scan for Cancer.”

Nature Communications : “Mutational Signatures of Ionizing Radiation in Second Malignancies.”

Reviewed by Louise Chang on December 22, 2018

NEXT QUESTION:

What are the side effects of a CT scan?

WAS THIS ANSWER HELPFUL

"ALEXA, ASK WEBMD"

THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

    This tool does not provide medical advice. See additional information.