What is the difference between AP and PA view in a chest radiograph?

Chest Radiograph is usually PA view, but what are the indications for AP view of chest radiograph?

Authored By alex bwn on Tuesday 9th October 2012

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Nabeela Adam
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Medical Student
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Posted about 7 years ago

AP chest XR's are used in a trauma setting as part of your work up in an emergency set up. In a emergency set up you ask for 3 XR's:

  • AP Chest
  • AP pelvis
  • Lateral C spine

PA XR's are used in ge

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Olivia France
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Medical Student - Aberdeen
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Posted about 7 years ago

Hi Alex,

I also wanted to say that when looking at an AP X-ray, remember that the heart will look larger than on PA, so be aware when commenting on cardiac appearance.
Also, an AP is often taken when a patient is unable to tolerate moving -

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Irslan Khan
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Radiography Technician & Radiation Therapy Tech - worked with Shaukat Khanum Memorial Cancer Hospital & Research Center Lahore Pakistan
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Posted about 4 years ago
Yes that is a quite better Experience Thanks Olivia
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Nilesh Kumar Mitra
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Posted about 7 years ago

the terminlogy A-P or P-A depends on postion of the X-ray film & X-ray tube
Normal healthy patient Chest X-rays are P-A, meaning patient's anterior chest faces X-ray film and X-ray tube over posterior aspect of chest.
Terminology goes a

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