Q: Is there a medical test that will show whether I've been exposed to asbestos?
A:Chest x-rays cannot show asbestos fibers, but can detect early signs of certain lung diseases. Other tests, such as lung function tests and high resolution CT scans, can also detect changes in the lungs caused by asbestos. These changes usually are not detectable until years after exposure.

Q: How can I identify materials that contain asbestos?
A: Unless a material is labeled, it is difficult to determine whether it contains asbestos simply by looking at it. If you have any doubts about the material, you should treat it as if it contains asbestos, or have it sampled and analyzed by a qualified professional. A professional should take samples for analysis, because there may be an increased health risk if fibers are released.