An X-ray uses a small amount of radiation to make images of your bones and internal organs. X-rays are most often used to detect bone or joint problems or to check the heart and lungs.

They are also used to check for calcifications in your body, such as renal stones. You may also have an X-ray to check for problems in the bowel, such as an obstruction or free air in the abdomen. They are also used to look for a foreign body, such as metal. This can be from trauma or a swallowed object.

Things to be aware of

 Tell the technologist if you:

• Are or may be pregnant
• Have had an X-ray of this part of your body before
• Have metal in the part of your body being imaged

Before your X-ray

Here is what to expect before the test: 

• You may be asked to remove your watch, jewelry, or garments with metal closures from the part of your body being imaged. These items can block part of the image.
• You may be asked to put on a gown.
• You may be asked about your overall health or any medicines you take.

During your test

Here is what to expect during the test: 

• You will be asked to lie on a table, sit, or stand.
• A lead apron may be draped over part of your body to shield it.
• With an X-ray of your chest or belly, you may have to take a deep breath and hold it for a few seconds.
• Each exam usually needs at least 2 X-rays. You may need to move your body before each new scan.