Lower Extremity 1

Question 1

how big must the body part be to use the bucky?

Answer 1

11 cm or more

Question 2

breathing instructions for lower extremity

Answer 2

don’t breathe, don’t move

Question 3

true AP position for femur, knee, leg and ankle

Answer 3

knee extended
foot dorsi-flexed
leg internally rotated 5 degrees (2nd toe pointed up)

Question 4

positioning for pelvis and AP hip. why?

Answer 4

legs internally rotated 15 degrees
prevents femoral neck foreshortening
places greater trochanter in profile

Question 5

AP pelvis CR

Answer 5

1 1/2” above the crest for the top of the film

Question 6

AP pelvis cassette size and orientation

Answer 6

14x17

upright or table bucky (vertical)

Question 7

collimation AP pelvis

Answer 7

film size

Question 8

ID blocker AP pelvis

Answer 8

toward feet

Question 9

labels for AP pelvis

Answer 9

iliac crest
sacro iliac joint
acetabulum
femoral head
greater trochanter
femoral neck
symphysis pubis
obturator foramen
superior pubic ramus
coccyx
sacrum

Question 10

measurement for AP sacrum

Answer 10

A-P at mid-pelvis (between ASIS and PS)

Question 11

CR for AP sacrum

Answer 11

perpendicular to sacrum

15 degree cephalic tube tilt

Question 12

film size and orientation

Answer 12

10x12

vertical

Question 13

shield for AP sacrum?

Answer 13

no

Question 14

breathin instructions for AP sacrum

Answer 14

don’t breathe

don’t move

Question 15

labels for AP sacrum

Answer 15

sacral foramina
sacroiliac joint
symphysis pubis

Question 16

lateral sacrum film size and orientation

Answer 16

10x12

vertical

Question 17

CR for lateral sacrum

Answer 17

3: below crest and 1” posterior to midaxillary line

Question 18

shield for lateral sacrum?

Answer 18

no

Question 19

measurement for AP coccyx

Answer 19

AP at mid pelvis

Question 20

collimation for AP coccyx

Answer 20

4x4

Question 21

film size and orientation for AP coccyx

Answer 21

10x12

vertical

Question 22

tube tilt for AP coccyx

Answer 22

10 degree caudal tube tilt

Question 23

labels on an AP coccyx

Answer 23

ischial spine
coccyx
symphysis pubis

Question 24

measurement for lateral coccyx

Answer 24

same as lateral sacrum

Question 25

CR for lateral coccyx

Answer 25

2" posteiror to greater trochanter

Question 26

sacrum/coccyx combo series

Answer 26

AP sacrum AP coccyx lateral sacrum and coccyx combo

Question 27

how do you measure for a sacrum/coccyx combo?

Answer 27

measure as for lateral sacrum

Question 28

film size and orientation for sacrum/coccyx combo

Answer 28

10x12 | vertical

Question 29

what is the special thing you have to do for the sacrum/coccyx combo?

Answer 29

load cassette with 2 films or filter coccyx or adjust image digitally

Question 30

CR location for AP hip

Answer 30

hip joint medial from top of greater trochanter on inguinal crease align entire leg along center of table

Question 31

patient positioning for AP hip

Answer 31

leg internally rotated 15 degrees

Question 32

cassette size and orientation for AP hip

Answer 32

10x12 | lengthwise

Question 33

frogleg lateral hip labels

Answer 33

crest femoral head greater trochanter lesser trochanter

Question 34

film size and orientation for frog leg lateral hip

Answer 34

10x12 | lengthwise

Question 35

patient orientation for frog leg lateral hip

Answer 35

flex affected knee, abduct thigh

Question 36

femur xrays must include what?

Answer 36

knee

Question 37

true AP position for lower extremity

Answer 37

knee extended foot dorsiflexed leg internally rotated 5 degrees cassette goes in the table of the bucky

Question 38

AP femur label

Answer 38

``` femur patella medial condyle lateral condyle tibia ```

Question 39

cassette size and orientation for AP femur

Answer 39

14x17 | lengthwise

Question 40

patient orientation blockers in general

Answer 40

ankle and up- toward ankle | foot- toward knee

Question 41

CR for AP femur

Answer 41

bottom of film 1/2" below apex of patella | CR to mid film

Question 42

lateral femur labels

Answer 42

femur condyles patella tibia

Question 43

film size and orientation for lateral femur

Answer 43

14x17 | lengthwise

Question 44

patient orientation for lateral femur

Answer 44

roll patient onto affected femur and flex knee (femur in lateral position)