An X-ray creates images by sending a low dose of radiation through the part of the body being examined onto film on the opposite side of the body.

X-rays are most often used to detect bone or joint problems, to check the heart for size, and examine the lungs for pneumonia, mass, or fluids.

You will be asked to lie on a table, sit, or stand. You may need to hold a deep breath for a few seconds. You can return to your normal routine immediately, unless you are advised otherwise.