If you have
diabetes or take metformin (Glucophage), the dye may
cause problems. Your doctor will tell you when to stop taking metformin and
when to start taking it again after the test so you will not have
There is a small chance of developing cancer from having
some types of CT scans.1 The chance is higher in children, young
adults, and people who have many radiation tests. If you are
concerned about this risk, talk to your doctor about the amount of radiation
this test may give you or your child, and confirm that the test is
results usually are ready for your doctor in 1 to 2 days.
CT scan of the head and face
The brain and blood vessels
and bones of the skull and face are normal in size, shape, and
No foreign objects or growths
No bleeding or collections of
fluid are present.
A growth, such as a tumor, or
bleeding is present in or around the brain. Foreign objects, such as glass or
metal fragments, are present. The bones of the skull or face are broken
(fractured) or look abnormal. Nerves leading to or from the brain are damaged
A collection of fluid is
found, which may mean bleeding in or around the brain.