Sternum and Ribs

Question 1

SID for lateral sternum

Answer 1

60-72 inches

Question 2

Breathing technique most effective in preventing lung markings from obscuring sternum in oblique position

Answer 2

Orthostatic breathing

Question 3

Degree of rotation for RAO of sternum

Answer 3

dependent on size of thoracic cavity

Question 4

For asthenic patient what degree of rotation used for RAO of sternum?

Answer 4

20 degrees obliquity

Question 5

If patient can’t lay prone for RAO of sternum, what is a alternative position?

Answer 5

LPO

Question 6

Why is RAO of sternum preferred over LAO?

Answer 6

RAO projects the sternum over the shadow of the heart

Question 7

Which position provides best frontal image of the sternum with minimal distortion?

Answer 7

RAO

Question 8

CR location for PA of sternoclavicular joints

Answer 8

3 inches distal (below) vertebra prominens

Question 9

Best position and rotation for left sternoclavicular joint

Answer 9

10-15 degree rotation in LAO position

Question 10

Breathing technique for projection of ribs above diaphragm

Answer 10

suspend on inspiration

Question 11

Projections for injury to right anterior upper ribs

Answer 11

PA and LAO

Question 12

Position that best demonstrates axillary portion of the ribs

Answer 12

LAO

Question 13

Position that best demonstrates axillary portion of the left posterior ribs

Answer 13

LPO

Question 14

Where to NOT put markers to indicate trauma to ribs?

Answer 14

Over the area of interest