Possible Complications
Problems are rare, but all procedures have some risk. The doctor
will go over some problems that could happen. For example, MRI scans can be harmful to
someone who has metal inside the body, such as:
- Devices like pacemakers, ear implants, insulin pumps, and shunts
- Joint replacements, plates, or metal pins
- Metal objects or pieces
A contrast dye may be used to take clearer pictures. Some people may have a reaction to this dye. Talk to your doctor about any allergies you have. Tell your doctor if you have liver or kidney problems. These problems may make it hard for your body to get rid of the dye.
Pregnant women should talk to their doctors about the risks of having an MRI scan.
Reasons for Test
An MRI scan may be done to diagnose a problem or look for
injuries. MRI scans can look at any body part. They can also be used to see if medicine
or treatment is working for a health issue.
What to Expect
Prior to Test
The care team may meet with you to talk about:
- Anesthesia that may be used
- Any allergies you may have
- Current medicines, herbs, and supplements that you take and whether you need to stop taking them before the scan
- Whether you have something in or on your body that would cause problems with an MRI, such as a medical device, joint replacement, or metal object
- Fasting before the scan, such as avoiding food or drink
- Whether you need a ride to and from the scan
- Tests that will need to be done before the scan, such as an x-ray to check for metal objects in the body
Anesthesia
Certain people may be given:
- Sedation—you will be relaxed
- General anesthesia—you
will be asleep
Description of Test
The MRI machine makes a loud banging noise. You may be given ear plugs or headphones before the scan.
A contrast dye may be injected into your hand or arm. You will lie very still on a sliding table. Monitors may be used to track your pulse, heart rate, and breathing. The table will slide into a narrow, enclosed tube.
The technician will leave the room. You will be given directions through an intercom. You can reply through the intercom. The pictures will be taken. You will exit the machine. Any IV needles used will be removed.
How Long Will It Take?
40 to 90 minutes
Will It Hurt?
The exam is painless.
Results
The images will be studied. A report will be sent to your
doctor. Your doctor will talk to you about the results and any more tests or
treatment.
Problems To Look Out For
Call the doctor if you have:
- Lightheadedness
- Any allergic symptoms, such as a rash or swelling if contrast dye was used
- Problems urinating (peeing)
- Nausea or vomiting
- Symptoms that get worse
If you think you have an emergency, call for medical help right away.
