About The Test
A chest X-ray posteroanterior (PA) view is an imaging test that uses X-rays to look at the structures and organs in your chest. It can help in detecting certain lung and heart problems as well as visualizing the internal organs of the chest which include food pipe and diaphragm.
This test is done to view any injury or fractures of the bones of the chest wall, some diseases of the lungs like pneumonia, and diagnose underlying heart diseases like enlargement of the heart.
The actual exposure time to radiation is usually less than a second, although the overall test may take 15-20 minutes.