Which portion of the rib sits more superior? vertebral end ...

[mikaylakyoung]

Which portion of the rib sits more superior?
 
 vertebral end
  sternal end
  anterior end
  axillary margin

Question 2

Which of the following is the most important means of keeping patient dose to a minimum?
 
 altering the focal spot size
  using automatic exposure control
  using a high kVp and high mAs
  using high kVp and lower mAs

[janeli]

Answer to Question 1

vertebral end

Rationale: The vertebral end of the rib sits more superior to the sternal end of the rib. When counting the number of ribs above the diaphragm, the posterior portion of the ribs are counted.

Answer to Question 2

using high kVp and lower mAs

Rationale: To keep patient dose in consideration, kVp should be selected that will adequately penetrate the part of interest, while mAs should remain as low as possible. Increasing the mAs factor can contribute most significantly to patient dose.