Lower limb random questions Flashcards Preview

Radiology > Lower limb random questions > Flashcards

Flashcards in Lower limb random questions Deck (185)
Loading flashcards...
1

To prevent the joint space from being obscured by the magnified shadow of the medial femoral condyle in the lateral projection of the knee, the radiographer should: a. Angle the central ray 5 degrees cephalad b. Place the knee joint in 90 degree flexion c. Rotate the knee so that the patella forms a 45 degree angle to the film d. Fully extend the patients lower leg

a. Angle the central ray 5 degrees cephalad

2

The bone identified in the figure attached is the:

a. tibia

b. cuboid

c. talus

d. navicular

Talus

3

To perform this position, the central ray is angled:

a. 5-7 degrees cephalic
b. 5-7 degrees caudad
c. angulation depends on the patient
d. There is no angulation in this position

5-7 degrees cephalic

4

The tibial plateaus slope:

a. anteriorly 10-20 degrees
b. posteriorly 10-20 degrees
c. laterally 10-20 degrees
d. medially 10-20 degrees
 

posteriorly 10-20

5

In which of the following positions can the sesamoid bones of the foot be demonstrated free of superimposition with the metatarsals or phalanges?

a. dorsoplantar metatarsals/toes
b. tangential metatarsals/toes
c. 30 degrees medial oblique foot
d. 30 degrees lateral oblique foot

 

tangential metatarsals/toes

6

Where does the CR enter the knee for a lateral projection of the patella?

a. posterior margin of the medial epicondyle
b. anterior margin of the medial epicondyle
c. through the patellofemoral joint space
d. directly to the lateral aspect of the patella

Through the patellofemoral joint space

7

For a lateral projection of the ankle, the CR must enter the:

a. navicular
b. tibiofibular joint
c. medial malleolus
d. lateral malleolus

medial malleolus

8

The bone part identified in the figure attached is the:

a. lateral condyle
b. medial condyle
c. lateral malleolus
d. medial malleolus

lateral malleolus

9

The talus articulates with how many bones:

a. 1
b. 2
c. 3
d. 4

4

10

Which of the following projections of the calcaneous is obtained with the leg extended, the plantar surface of the foot vertical and perpendicular to the IR, and the central ray directed 40 degrees caudad?

a. Axial plantodorsal projection
b. Axial dorsoplantar projection
c. Lateral projection
d. Weight-bearing lateral projection

Axial dorsoplantar projection

11

How far should the IR extend below the knee for a lateral projection of the femur?

a. 1 in
b. 2 in
c. 3 in
d. 4 in

2 in

12

What is the CR angle for an AP projection of the leg?

a. 0
b. 5 degrees caudad
c. 7 degrees caudad
d. 5-7 degrees cephalad

0 degrees

13

What is the CR angulation for the axial (plantodorsal) projection of the calcaneous?

a. 25 degrees
b. 30 degrees
c. 35 degrees
d. 40 degrees

40 degrees

14

The best projection to demonstrate the articular surfaces of the femoropatellar articulation is the:

a. AP knee
b. PA knee
c. tangential ("sunrise") projection
d. "tunnel" view

tangential ("sunrise") projection

15

In the lateral projection of the ankle, the:
1. talotibial joint is visualized
2. talofigular joint is visualized
3. tibia and fibula are superimposed

 

1 and 3 only

16

In the attached image, the central ray is directed to:

a. The PIP joint of the third digit
b. The head of the third metatarsal
c. The base of the third metatarsal
d. The PIP joint of the digit of interest

The head of the third metatarsal

17

Which of the following bones participate in the formation of the acetabulum?
1. Illium
2. Ischium
3. Pubis

1, 2 and 3

18

Which of the following is recommended to better demonstrate the tarsometatarsal joints in the dorsoplantar projection of the foot?

a. Invert the foot
b. Evert the foot
c. Angle the central ray 10 degrees posteriorly
d. Angle the central ray 10 degrees anteriorly

Angle the central ray 10 degrees posteriorly

19

How many tarsal bones are there in the foot?

a. 4
b. 5
c. 6
d. 7

7

20

The most commonly performed oblique projection of the foot is the:

a. AP oblique in medial rotation
b. AP oblique in lateral rotation
c. PA oblique in medial rotation
d. PA oblique Grashey method

 AP oblique in medial rotation

21

For an AP oblique projection of the knee, the limb is rotated:

a. 25 degrees
b. 30 degrees
c. 45 degrees
d. 30-40 degrees

45 degrees

22

For a plantodorsal projection of the toes, the central ray should be directed to enter the anatomy at the:

a. 1st metatarsophalangeal joint
b. 3rd metatarsophalangeal joint
c. 2nd metatarsophalangeal joint
d. navicular bone

3rd metatarsophalangeal joint

23

In which of the following projection is the talofibular joint best demonstrated:

a. AP
b. Lateral oblique
c. Medial oblique
d. Lateral

Medial oblique

24

All of the following bones area associated with condyles except the:

a. femur
b. tibia
c. fibula
d. madible

fibula

25

Which of the following must be rotated for all oblique projection of the ankle?

1. pelvis
2. leg
3. foot

2 and 3

26

The medial epicondyle of the femur is the structure lettered:

a. B
b. C
c. I
d. J

I

27

The central ray in this projection is angled:

a. 0 degrees
b. To match the angle of the femur
c. 40 degree cephalic
d. 40 degrees caudad

0 degrees

28

The CR angle for AP oblique projections of the knee is:

a. 0 degrees
b. 5 degrees caudad
c. 7 degrees cephalad
d. variable, depending on the ASIS/tabletop distance

variable, depending on the ASIS/tabletop distance

29

When the malleoli of the ankle are positioned parallel with the IR, the ankle is in position for which projection:

a. AP
b. AP oblique, 45 degree lateral rotation
c. AP oblique, 45 degree medial rotation
d. AP oblique., 15-20 degree medial rotation for the ankle mortise

 AP oblique., 15-20 degree medial rotation for the ankle mortise

30

For this position, the sole of the foot should form what angle with the plane of the cassette:

a. 10-20 degrees
b. 30-40 degrees
c. 40-50 degrees
d. 50-60 degrees

30-40 degrees