Magnetic Resonance Imaging (MRI) is a non-invasive medical test that helps doctors diagnose various conditions. Proper preparation ensures accurate results and a smooth experience. Here’s everything you need to know about preparing for your MRI.
1 Week Before Your MRI
Key Considerations to Discuss with Your Doctor
Before your MRI, consult your doctor about any special instructions. Important factors to discuss include:
- Metal Implants – Inform your doctor if you have metal in your body, such as pacemakers, artificial joints, or surgical clips.
- Claustrophobia – If enclosed spaces make you anxious, ask about sedation options.
- Medications – Provide a list of all medications you are taking.
- Allergies – Notify your doctor about any allergic reactions to contrast dye.
- Tattoos – Some tattoo inks contain metal, which might interfere with the scan.
- Braces – Metal braces can distort MRI images, especially for head scans.
You may be required to complete an intake questionnaire to ensure safety and accurate results.
Special MRI Preparations
MR Enterography and Colonography
If your MRI involves imaging your bowels, specific preparation is necessary:
| Preparation Step | Timeline |
|---|---|
| Low-residue diet | 3–5 days before scan |
| Clear liquid diet | 1 day before scan |
| Bowel cleansing (laxatives, enema) | As instructed by the doctor |
| Fasting | 4–6 hours before scan |
Follow your doctor’s specific instructions for bowel preparation.
1 Day Before Your MRI
Most people don’t need to take special steps the day before an MRI. However, if you’re undergoing a bowel MRI, continue following the prescribed bowel prep.
6 Hours Before Your MRI
Fasting Requirements
Certain MRIs require fasting. This includes:
- Abdominal MRI
- MRI Enterography/Colonography
- Cardiac MRI
- MRI with Contrast Dye
During fasting, only drink water and avoid smoking or chewing gum.
Tip: Drink water in moderation before your MRI, as you won’t be able to use the restroom during the scan.
At Check-in for Your MRI
Clothing and Accessories
To avoid interference with the scan, wear loose, comfortable clothing and avoid metal, including:
- Jewelry and piercings
- Hair clips
- Clothing with zippers, buttons, or metal fasteners
- Bras with metal wiring
Some facilities may require you to change into a hospital gown.
Noise Sensitivity
MRI machines can be loud. If you’re sensitive to noise, ask if headphones or music options are available.
Preparing Children for an MRI
While research suggests children may be less anxious about MRIs than adults, preparing them properly can help ease concerns.
Helpful Tips for Children
- Explain what they will see, hear, and feel during the test.
- Reassure them that the machine is noisy but harmless.
- Allow them to bring a comfort item (blanket or stuffed toy with no metal parts).
- Discuss sedation options with their doctor if needed.
What Happens Next?
MRI scans typically last 15 to 90 minutes, with some lasting up to 2 hours. The time it takes to receive results varies, so ask your doctor when to expect them.
Final Thoughts
Proper preparation helps ensure an accurate and comfortable MRI experience. Always follow your doctor’s guidance for the best results. If you have any concerns, discuss them with your healthcare provider before the scan.
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