Cardiac stress magnetic resonance imaging (MRI) tests are generally very safe. Potential complications include:
- Injury caused if the magnet reacts with metal in or on the body. If you have metal objects or certain types of devices implanted in your body, you may not be able to have an MRI. Tell your doctor about any surgeries or procedures you've had.
- Symptoms caused by the medication used to mimic stress on your heart. These can include facial flushing, nausea, dizziness or lightheadedness, mild headache, mild shortness of breath, fast or slow heartbeat, chest tightness, arm discomfort, or jaw discomfort.
- Allergic reactions to the MRI enhancing agent, if it is used. This is rare.