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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cross-train. v. cross-trained, cross-trainÂ·ing, cross-trains. v. intr. 1. To undergo or provide training in different tasks or skills: The department has cross-trained in firefighting and emergency medical services. 2. To train in different sports, mainly by alternating regimens, as in running, bicycling, and swimming. v. tr. To train (another) in different tasks or skills.