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Questions and Answers
When performing erect PA chest X-rays with direct digital chest systems, what is the minimum field collimation size?
When performing erect PA chest X-rays with direct digital chest systems, what is the minimum field collimation size?
- 20 x 24 inches
- 17 x 17 inches
- 14 x 17 inches (correct)
- 10 x 12 inches
How can the upper and lower collimation borders be determined for erect PA chest X-rays?
How can the upper and lower collimation borders be determined for erect PA chest X-rays?
- By adjusting the illuminated field margins to the outer skin margins on each side of the posterior chest surface
- By measuring the distance between the costophrenic angles
- By placing one's hands squarely on each side of the chest
- By adjusting the upper border of the illuminated light field to the vertebra prominens (correct)
Why should the field be collimated in a landscape direction if there is any doubt that both sides of the chest can be included in erect PA chest X-rays?
Why should the field be collimated in a landscape direction if there is any doubt that both sides of the chest can be included in erect PA chest X-rays?
- Because it is easier to determine the side collimation borders in a landscape direction
- Because the height of the average lung field is less than the width (correct)
- Because it is easier to determine the upper and lower collimation borders in a landscape direction
- Because the width of the average lung field is less than the height
What is the purpose of raising both arms during chest imaging?
What is the purpose of raising both arms during chest imaging?
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What is the traditional CR location for chest imaging?
What is the traditional CR location for chest imaging?
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Why is a consistent chest positioning method important?
Why is a consistent chest positioning method important?
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