Blog

What effect does severe motion have on subject contrast? 

You must perform a lumbar spine on an average-sized patient. The AP had a satisfactory exposure at 20 mAs. What technique should be used for the lateral projection?

A change in what factor can effectively increase spatial resolution, decrease image magnification, increase the field of view without changing IR size, and decrease patient exposure? 

What is a good rule-of-thumb for adjusting technique for changes in SID from 40″ to 72″?

In general radiography, what OID should always be used? 

Which of the following best describes a mechanism which moves the grid back and forth in a linear movement during exposure: 

What type of distortion occurs when the x-ray beam is angled along the long axis of a flat, wedge-shaped, or tubuar part and the part is parallel to the IR?

An AP axial SI joint x-ray required 30 degrees of tube angulation. How many inches should the tube-to-tabletop distance be adjusted?

The adjustment in radiographic technique to compensate for changes in the SID follows which law?

A technologist performed a lateral lumbar spine x-ray and forgot to collimate to a 7″ x 17″ field size. Instead, the technologist left the field size at 14″ x 17″. Which of the following will occur as a result of this error?