The PA (posterior-anterior) film is obtained with the patient facing the cassette and the x-ray tube 6 feet away. This distance diminishes the magnification of structures closer to the x-ray tube. Heart is close to normal size as possible.
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A zorse is a zebroid which is a category of zebra hybrid that is not as well-known as common hybrids like the mule. The most common type of zebroid is the zorse; a zebra-horse cross species.