![]() Sometimes, people who take metformin (Glucophage) may need to refrain from using it for a few days before getting a CT scan with contrast dye. The doctor will also usually ask the person to take off any jewelry, removable dental work, or hairpins because these can affect the scan’s images. These will include whether or not to refrain from eating or drinking for a certain period before the scan. If a person is having brain-related symptoms, such as changes in personality or affected movement, a doctor may order a head CT scan to make sure that a brain abnormality is not the underlying cause.Ī doctor should provide specific instructions for the day of the CT scan. evaluating a person with a history of hydrocephalus, a condition in which an accumulation of cerebrospinal fluid causes the enlargement of the brain ventricles. ![]() assessing birth conditions that cause the skull to form abnormally.checking the effectiveness of medical treatments in shrinking a brain tumor.looking for a possible brain tumor or other brain abnormality.assessing a person having stroke-like symptoms to see whether there are signs of a blood clot or brain bleeding.looking for possible damage after trauma to the head, such as soft tissue injuries, brain bleeding, and bone injuries. ![]() Some of the reasons why a doctor may order a head CT scan include: Share on Pinterest A person may have a CT head scan after trauma to check for damage.Ī doctor may use a CT head scan to get images in an emergency, to make a medical diagnosis, or to see how well treatments are working.
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