Criteria for humerus and shoulder projections

Question 1

kVp range for humerus and shoulder with grid:

Answer 1

70-85

Question 2

kVp range for humerus and shoulder without grid:

Answer 2

70-75

Question 3

use of grid is needed for thickness of:

Answer 3

greater than 10 cm

Question 4

mA and exposure time for humerus and shoulder:

Answer 4

high mA
short exposure time

Question 5

focal spot size for humerus and shoulder:

Answer 5

small

Question 6

SID

Answer 6

40 to 44-inch

AC joints you can use 72

Question 7

filter for humerus and shoulder:

Answer 7

boomerang for AP projections of shoulder and scapula

Question 8

shoulder projections are best performed:

Answer 8

erect (when possible)

Question 9

The use of contact shield over the breast, lung, and thyroid regions is recommended for most shoulder projections.

Answer 9

true

Question 10

collimation:

Answer 10

close collimation to ensure optimal quality

Question 11

routine projections for humerus:

Answer 11

AP
rotational lateral

Question 12

routine projections for shoulder:

Answer 12

AP external rotation
AP internal rotation

Question 13

routine projections for clavicle:

Answer 13

AP
AP axial

Question 14

routine projections for scapula:

Answer 14

AP
lateral (erect/recumbent)

Question 15

what rotation is needed for the greater tubercle to be profiled laterally?

Answer 15

external

Question 16

what rotation is needed for the humeral epicondyles to be angled 45° to IR?

Answer 16

neutral

Question 17

what rotation is needed for the epicondyles to be perpendicular to the IR?

Answer 17

internal

Question 18

what rotation is needed for supination of the hand?

Answer 18

external

Question 19

what rotation is needed for the palm of the hand to be against the thigh?

Answer 19

neutral

Question 20

what rotation is needed for the proximal humerus to be in a lateral position?

Answer 20

internal

Question 21

what rotation is needed for the proximal humerus to be in position for an AP projection?

Answer 21

external rotation

Question 22

This special projection of the shoulder places the glenoid cavity in profile for an “open” scapulohumeral joint?

Answer 22

Grashey method

Question 23

What type of CR angle is required for the apical AP axial shoulder (Garth method) projection?

15° cephalad
10-15° caudad
30° caudad
40° caudad

Answer 23

45° caudad

Question 24

For the erect version of the tangential projection for the intertubercular sulcus, the patient leans forward _______ from vertical.

Answer 24

10-15°

Question 25

What CR angulation is required for the tangential projection-supraspinatus outlet (Neer method)?

none; CR is perpendicular
25° anteriorly and medially
10-15° caudad
45° caudad

Answer 25

10-15° caudad

Question 26

Which anatomy is best demonstrated by the Alexander method?

Answer 26

AC joints

Question 27

A PA axial projection of the clavicle requires a 15-30° caudad CR angle.

Answer 27

true

Question 28

What CR angle should be used for the inferosuperior axial projection for the scapulohumeral joint space?

Answer 28

25-30° medially

Question 29

If a patient can’t fully abduct the affected arm 90° for the inferosuperior axial projection (Clements modification), the tech can angle the CR _____° toward the axilla

Answer 29

5-15