An X-ray machine uses a small dose of radiation to produce images of structures inside the body. The X-rays pass through the area of the body being examined and are translated into images captured on the other side of the body.
Learn more about X-ray exams in the Johns Hopkins Health Library.
X-ray exam: Why Choose Johns Hopkins Medical Imaging?
Johns Hopkins Medical Imaging brings the world-class expertise of Johns Hopkins to your community. Why does expertise matter? Because you matter. Here is how we do it:
- Physician Experts. We set the standard for other radiologists around the world.
- #1 Radiology Department. We are the top-ranked radiology department by U.S. News and World Report.
- State-of-the-Art Technology. Doing the right study with high quality increases accuracy.
- Your Safety Is Always Our Priority. We take comprehensive safety measures to minimize any possible risk.
How do I prepare for an X-ray?
Notify the technologist if you are pregnant or think you may be pregnant. No other specific exam preparation is typically required.
What happens during an X-ray?
- You will be asked to remove any clothing or jewelry that may interfere with the exam. If you are asked to remove clothing, you will be given a gown to wear.
- The area of your body being examined will determine if you sit, stand or lie down on a table.
- Areas of the body not being examined may be covered with a lead apron to avoid exposure to the X-rays.
Learn more about what happens during an X-ray.
What happens after an X-ray?
There is typically no special type of care following an X-ray. However, your health care provider may give you additional instructions depending on your specific health condition.