How Do I Prepare for an MRI?
Before your MRI, let your doctor know if you:
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Have any health problems, such as kidney or liver disease
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Recently had surgery
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Have any allergies to food or medicine, or if you have asthma
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Are pregnant, or might be pregnant
No metal is allowed in the MRI room, because the magnetic field in the machine can attract metal. Tell your doctor whether you have any metal-based devices that might cause problems during the test.
On the day of the test, wear loose, comfortable clothing that doesn't have snaps or other metal fasteners. You might need to take off your own clothes and wear a gown during the test. (WebMD)