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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Helping and inspiring students to succeed in their academic pursuits. EngLinks is the academic support service of the Engineering Society of Queenâs University. We help engineering students succeed in their studies. We also provide Queenâs engineers with amazing employment opportunities where they can gain work experience while helping their peers. EngLinks offers one-on-one tutoring, course specific group workshops and a textbook library in the ILC.