How should I prepare for a skull X-ray?

Before the X-ray test, tell your doctor if you are or might be pregnant. Pregnancy and the risk of radiation exposure to your unborn baby (fetus) must be considered. The risk of damage from the X-rays is usually very low compared with the potential benefits of the test. If a skull X-ray is absolutely necessary, a lead apron will be placed over your abdomen to shield your baby from exposure to the X-rays.

Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done or what the results will mean. 

You don't need to do anything else before you have this test.