Sternum Quiz

Question 1

What is the correct obliquity for the RAO projection of the sternum?

a.) 5 degrees
b.) 10 degrees
c.) 15-20 degrees
d.) 30 degrees

Answer 1

c.) 15-20 degrees

Question 2

Why is the RAO sternum preferred to the LAO position?

a.) the RAO reduced dose to the thyroid gland
b.) the RAO projects the sternum away from the hilum and heart
c.) the RAO projects the sternum over the shadow of the heart
d.) the RAO produces less magnification of the sternum

Answer 2

c.) the RAO projects the sternum over the shadow of the heart

Question 3

What should the correct SID be on the RAO projection of the sternum?

a.) 40’’
b.) 48’’
c.) 60’’
d.) 72’’

Answer 3

a.) 40’’

Question 4

What is the purpose for the recommended SID of 60’’ to 72’’ for the lateral sternum projection?

a.) no change in the image
b.) increases magnification
c.) decreases magnification
d.) SID does not need to be 60 to 72’’ recommendation only

Answer 4

c.) decreases magnification

Question 5

Where should the shoulders and arms be placed on the lateral projection of the sternum?

a.) shoulders and arms straight up in the air
b.) shoulders and arms out in front of the patient
c.) arms down by patient side
d.) shoulders and arms drawn behind patient

Answer 5

d.) shoulders and arms drawn behind patient