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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?

Match each of the following definitions/descriptions with the corresponding response.  Responses will not be used more than once.  

An exposure is made at 20 mAs using 400 mA and .05 seconds.  If the same mAs is desired in 0.025 seconds, what will be the new mA station?