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13 Cards in this Set
- Front
- Back
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State the number of ribs seen on a good PA chest radiograph
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10
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Explain why the patient should be upright whenever possible for a chest examination.
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-The diaphragm is at its lowest position
-Visualization of air/fluid levels -Engorgement of pulmonary vessels is avoided |
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Describe the reason exposures are made on inspiration
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Ensures max. expansion of lungs
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Describe the reason chest radiographs are performed at 72” SID
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Decrease magnification of the heart
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Describe how rotation is determined on a PA chest radiograph.
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Sternal ends of the clavicles equidistant from the vertebral column.
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Describe how rotation is determined on a lateral chest radiograph
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Superimposition of the ribs posterior to the vertebral column.
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Explain the importance of the arms being raised above the head for a lateral position.
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Arms at the patient’s sides would create an artifact.
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Explain why the patient is generally positioned in a left lateral position.
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it results in a less magnified heart image.
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Describe the location of the mediastinum.
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The area of the thorax bounded by the sternum anteriorly, the spine posteriorly, and the lungs laterally.
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List the structures associated with the mediastinum.
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Heart, great vessels, trachea, esophagus, thymus, lymphatics, fibrous tissue, fat.
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Explain why foreign bodies are more likely to pass into the right bronchus.
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The right lung is more vertical and is a larger diameter
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Explain the importance of using high kilovoltage when radiographing the chest.
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To penetrate and demonstrate all thoracic anatomy
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Explain the importance of positioning a patient for a true PA and lateral projection of the chest.
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A slight amount of rotation causes a significant distortion of the heart shadow.
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