Author: Anonymous

Exposure time controls or influences which of the following factors?     1. IR exposure     2. spatial resolution     3. distortion

Which of the following factors is influenced by a change in mAs?     1. IR exposure     2. distortion     3. spatial resolution

The measure of exposure in air, followed by the computation to estimate the absorbed dose to the patient is called?

There is 5” of OID. The SID is 45”. What is the size of the of the object if the image size is 12 inches? 

A radiograph is made using 70 kVp, 20 mAs at a 40” SID. Which of the following sets of technical factors will cut image receptor exposure in half?

Which set of technical factors would demonstrate the least exposure to the IR? 

A patient measuring 20 cm requires 10 mAs at 75 kVp based on a fixed kVp-variable mAs technique chart. What technique should be used for the next patient, who measures 25 cm?

An x-ray image of the ankle was made at 40” SID, 200 mA, 50 msec, 70 kvp, 0.6 mm. Find SOD if the SID is 58” and the OID is 4”. 

Columns and rows of pixels is called a ____.

What is a major benefit of a fixed kVp technique chart?