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What is the exposure rate 40” from a source that has an exposure rate of 36 mR at a distance of 72” from the source?

What is the magnification of an image taken at 72 inch SID and 8 inch OID?

If a positioning aid cannot be used and a patient needs to be held for a radiographic procedure, who should be the first choice?

What is the minimum change needed to make a visible change in density on a radiograph?

Which of the following groups of exposure factors would be most appropriate to control involuntary motion?

Which of the following is determined by the measurement of incident light intensity divided by the light intensity transmitted through a film?

Refer to the radiographic images below.  In comparison of film A to film B, film A demonstrates: Contrast.jpg

A radiographic image is taken of a lateral femur using 80 kVp and 10 mAs that demonstrates insufficient density.  In using the 15% rule, which of the following changes should be made for the second exposure in order to achieve an acceptable radiograph?

Which of the following increments in OD indicates a doubling or halving in opacity?

OID is related to recorded detail in which of the following ways?