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Quantum noise can affect edge discrimination and contrast resolution.Which of the following can be used  when repeating an exposure due to noise? 1.   increasing kV. 2.   increasing mAs. 3.   decreasing kV. 4.   decreasing mAs.

Which of the following is best indicated when a 17 inch (43 cm) or longer field length is used to accomodate the  structure, as with long bones and the vertebral column?

The lateral chest image below is demonstrating a  “hallmark” or classic radiographic sign for a particular chest pathology.  Which pathology is being demonstrated by this chest image? Picture1.png

Good collimation practices will do all of the following except

A condition in which there is chronic inflammation of the intestinal wall that may  result in bowel obstructions for many of the patients is termed:

This condition is the result of an obstruction of the of the bronchus or puncture of the air passageway that can lead to  a partial or complete collapse of the lung:

An additive disease processes that would require at least a 30 – 50 % increase in mAs include all of the following except:

BONUS: A KUB projection was obtained using the Angelina College CR radiography system, the following technical factors were used:80 kV, 8mAs, a large focal spot with a 12:1 grid, 44″ SID.  The resulting projection demonstrated penetration of some of the structures, but considerable quantum noise,  a S value # 600.  How should the technical factors be adjusted prior to the next exposure?

 PA chest projection was obtained using the Angelina College CR radiography equipment, 120 kV 1.5 mAs , large focal spot, 12:1 grid, 72″SID. The resulting projection recorded a S value # of 1200.  What new technical factors should be used for the repeat exposure?

A chest radiograph  done in the PA position reveals that the right sternoclavicular joint is closer to the spine than the left joint. What specific positioning error has been committed?