Medical Health Encyclopedia

Chest X-ray

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Chest X-ray

Definition:

A chest x-ray is an x-ray of the chest, lungs, heart, large arteries, ribs, and diaphragm.

Alternative Names:

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Chest radiography; Serial chest x-ray; X-ray - chest

How the test is performed:

The test is performed in a hospital radiology department or in the health care provider's office by an x-ray technician. Two views are usually taken: one in which the x-rays pass through the chest from the back (posterior-anterior view), and one in which the x-rays pass through the chest from one side to the other (lateral view). You stand in front of the machine and must hold your breath when the x-ray is taken.

How to prepare for the test:

Inform the health care provider if you are pregnant. Chest x-rays are generally avoided during the 1st and 2nd trimesters of pregnancy (a trimester is a period of 3 months). You must wear a hospital gown and remove all jewelry.

How the test will feel:

There is no discomfort. The film plate may feel cold.

Why the test is performed:

A chest x-ray may be ordered when an person's symptoms include a persistent cough, coughing up blood, chest pain, a chest injury, or difficulty in breathing. The test is also used when tuberculosis, lung cancer, or other chest or lung disease is suspected.