Dense structures, such as bone, appear white on the x-ray films because they absorb many of the x-ray beams and block them from reaching the plate. Hollow body parts, such as lungs, appear dark because x-rays pass through them.
Back x-rays and chest x-rays are among the most common conventional x-ray tests. You should not have an x-ray if you're pregnant unless the risk is considered and special precautions are taken, because radiation can be harmful to a developing fetus.
A chest x-ray provides black-and-white images of your lungs, ribs, heart, and diaphragm.
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