Ankle & Lower Leg Quiz

Question 1

What must always be included on the AP and lateral projections of the lower leg?

a.) knee joint only
b.) ankle joint only
c.) knee and ankle joints
d.) mid lower leg

Answer 1

d.) knee and ankle joints

Question 2

The medial malleolus is part of the:

a.) calcaneus
b.) fibula
c.) talus
d.) tibia

Answer 2

d.) tibia

Question 3

Which of the following is the correct CR angulation for the plantodorsal projection of the heel?

a.) 10 degrees daudad
b.) perpendicular
c.) 40 degrees cephalad
d.) 40 degrees caudad

Answer 3

c.) 40 degrees cephalad

Question 4

How far should the IR extend beyond the ankle or knee joint for an AP projection of the lower leg?

a.) 3’’
b.) 2’’
c.) 1/2’’
d.) 5’’

Answer 4

b.) 2’’

Question 5

What is the correct rotation for the ankle mortise?

a.) 10 degrees medially
b.) 10 degrees laterally
c.) 15 to 20 degrees medially
d.) 45 degrees medially

Answer 5

c.) 15 to 20 degrees medially

Question 6

To ensure that both joints are included on an AP projection of the tibia and fibula of an adult, the technologist should:

a.) increase the SID to 60 inches (150cm)
b.) turn the image receptor diagonally
c.) use a tabletop technique
d.) use a bucky tray

Answer 6

b.) turn the image receptor diagonally

Question 7

What is the main reason for a physician to order AP stress views of the ankle?

a.) fractures only
b.) no fractures
c.) joint seperation, ligament tear and rupture
d.) sprains only

Answer 7

c.) joint seperation, ligament tear and rupture

Question 8

Where is the CR directed on the AP, oblique and mortise views of the ankle?

a.) 1/2’’ distal to malleoli
b.) 1’’ distal to malleoli
c.) 1’’ proximal to malleoli
d.) midway between malleoli

Answer 8

d.) midway between malleoli

Question 9

Where should the central ray be directed on the AP and lateral projections of the lower leg?

a.) mid lower leg
b.) upper half of lower leg
c.) distal lower leg
d.) ankle joint

Answer 9

a.) mid lower leg

Question 10

Which of the following joint spaces should be open on the AP oblique ankle?

a.) tibiotalar joint
b.) talonavicular joint
c.) calcanealcuboid
d.) distal tibiofibular joint

Answer 10

d.) distal tibiofibular joint

Question 11

Where will the fibula be located on a properly positioned lateral radiograph of the lower leg?

a.) over the anterior half of the tibia
b.) behind the tibia
c.) directly over the tibia
d.) over the posterior half of the tibia

Answer 11

d.) over the posterior half of the tibia

Question 12

Where is the CR directed on the lateral projection of the heel?

a.) medial malleolus
b.) 1’’ superior to medial malleolus
c.) 1’’ inferior to medial malleolus
d.) posterior calcaneus

Answer 12

c.) 1’’ inferior to medial malleolus

Question 13

Where should the central ray be directed on the lateral projection of the ankle?

a.) 1’’ above the medial malleolus
b.) 2’’ below the medial malleolus
c.) medial malleolus
d.) mid heel

Answer 13

c.) medial malleolus

Question 14

WHich of the followign bones does not bear body weight?

a.) fibula
b.) tibia
c.) navicular
d.) calcaneus

Answer 14

a.) fibula

Question 15

The proximal end of the tibia presents two prominent processes called the:

a.) malleoli
b.) tuberosities
c.) tubercles
d.) condyles

Answer 15

d.) condyle

Question 16

For an axial projection of the calcaneus, the ankle should be dorsiflexed so the plantar surface of the foot is:

a.) 70 degrees from the plane of the IR
b.) perpendicular to the IR
c.) 50 degrees from the plane of the IR
d.) parallel with central ray

Answer 16

b.) perpendicular to the IR