X-ray

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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?

1. 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.
2. The area of your body being examined will determine if you sit, stand or lie down on a table.
3. 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.