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Is a CT scan painful or dangerous?

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The test is painless. To get the scan, you'll lie on a table. You may get a shot of "contrast material" into one of your veins, which will help doctors see parts of your brain more clearly on the image.

Be sure to tell the doctor or nurse if you've had an allergic reaction to contrast material in the past. Your doctor will also need to check your kidney function before using contrast. The dyes have iodine, which can cause a reaction in some people.

SOURCE: Cleveland Clinic.

Reviewed by Nayana Ambardekar on February 09, 2019

SOURCE: Cleveland Clinic.

Reviewed by Nayana Ambardekar on February 09, 2019

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