You are presented with a radiograph that appears to be black and white. Upon observation, you notice that the bones are grey.

What steps should you take for the next radiograph?

Question

TheoryPractice · Accepted Answer

Decrease kVp.. To determine which exposure factor to adjust, first assess whether the image is too dark or too light (use a toast analogy, is the toast burnt or not dark enough?). In this case, since the image is excessively dark, you should reduce the exposure factors. To determine the exposure factor to use, first rule out kVp. This can be determined by examining the contrast. Examine the bones for dark radiography. If the bones appear grey, there has been too much penetration, and the kVp should be reduced by 10 to 15%. If the bones are dark but still have some contrast with the surrounding soft tissue, they have not been overpenetrated, and the issue is excessive mAs. If the radiograph is too light, examine the organs. If the organs are not clearly visible, the area hasn't received adequate penetration, so increase your kVp by roughly 10 to 15% to boost density and contrast. If the organs are visible, penetration was not an issue; therefore, increase mAs to enhance the density of blackness on the radiograph.

You are presented with a radiograph that appears to be black and white. Upon observation, you notice that the bones are grey.<br/><br/>What steps should you take for the next radiograph?

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