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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Definition - What does Cross Platform mean? A cross-platform computer product or system is a product or system that can work across multiple types of platforms or operating environments. Different kinds of cross-platform systems include both hardware and software systems, as well as systems that involve separate builds for each platform, as well as other broader systems that are designed to work the same way across multiple platforms. Cross platform is also known as multiplatform or platform independent.