Before a head and face CT scan, tell your doctor if you:
- Are or might be pregnant.
- Are allergic to any medicines, including iodine dyes.
- Have a heart condition, such as heart failure.
- Have diabetes or take metformin (Glucophage) for your diabetes. You may have to adjust your medicine for a day before and after the test.
- Have had kidney problems.
- Have asthma.
- Have a medical device, such as a pacemaker or an insulin pump.
- Have had multiple myeloma.
- Become very nervous in small spaces. You need to lie still inside the CT scanner, so you may need a medicine (sedative) to help you relax.
Arrange for someone to take you home in case you get a medicine to help you relax (sedative) for the test.
Talk to your doctor about any concerns you have regarding the need for the test, its risks or how it will be done.
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