Which of the following images is most diagnostic with a long ...

[daltonest1984]

Which of the following images is most diagnostic with a long scale of contrast?
 
 pelvis
  knee
  shoulder
  chest

Question 2

Lead aprons during fluoroscopy should contain ____ lead equivalence.
 
 .25 mm
  .35 mm
  .50mm
  .75 mm

[AmberC1996]

Answer to Question 1

chest

Rationale: Higher kVp is needed to penetrate the mediastinum to the spine. The higher kVp contributes to a low scale of contrast that will allow for differences to be noted between the lungs, lung markings, and heart.

Answer to Question 2

.50mm

Rationale: Protective lead aprons worn during fluoroscopy must be of 0.5 mm lead equivalent.