Semester 1 Exam 4 Lower extremity

Question 1

Which fracture type would present itself at the base of the fifth metatarsal

Answer 1

Jones

Question 2

Weight-bearing studies of the foot are primarily used to demonstrate:

Answer 2

Longitudinal arch

Question 3

In the lateral projection of the foot, the

1. plantar surface should be perpendicular to the Image Receptor.
2. metatarsals are superimposed.
3. tibiotalar joint should be visualized.

Answer 3

123

Question 4

For the Axial (Tangential) projectionof the Calcaneus, the CR should be directed how many degrees and in what direction toward the long axis of the foot:

Answer 4

40 degrees cephalad

Question 5

For the lateral (mediolateral) projection of the calcaneus, the CR is directed to the:

Answer 5

1 in distal to medial malleolus

Question 6

To demonstrate a ligamentous tear at the ankle joint, which of the following may be taken?

Answer 6

stress view

Question 7

What is the kVp range for foot radiography

Answer 7

60-70

Question 8

On the anterior surface of the tibia is a prominent process called the:

Answer 8

tibial tuberosity

Question 9

When positioning a patient for an AP projection of the lower leg, which of the following criteria are true?

1. the femoral condyles are perpendicular to the cassette
2. the foot is vertical to the plane of the cassette
3. the knee and ankle joints are not rotated

Answer 9

2&3

Question 10

Which of the following projections will best demonstrate the cuboid free of superimposition?

Answer 10

AP oblique, medial rotation

Question 11

How many phalanges are in the great toe?

Answer 11

2

Question 12

When the calcaneus is imaged in the axial projection, the position of the foot is:

Answer 12

dorsiflexed

Question 13

In the AP axial projection of the foot the CR should be angled ____ toward the heel to open joint spaces.

Answer 13

10 degrees

Question 14

Which projection best demonstrates the upper portion of the talus?

Answer 14

AP ankle

Question 15

Which of the following is NOT clearly demonstrated on an AP projection of the foot?

Answer 15

calcaneus

Question 16

The best demonstrate the ankle mortise joint, the entire affected leg and foot should be rotated:

Answer 16

15-20 degrees medially

Question 17

For the AP and oblique projections of the toes, the central ray is directed perpendicular to the:

Answer 17

3rd mtp joint

Question 18

The cuboid lies on the _________ side of the foot.

Answer 18

lateral

Question 19

How many bones make up the lower leg?

Answer 19

2

Question 20

When requested to radiograph the toes, what technical factors must be adjusted from a dorsal plantar foot?

Answer 20

decrease mAs by 1/2

Question 21

The inferior aspect of the foot is termed the:

Answer 21

plantar surface

Question 22

Which of the following Radiographic procedures best demonstrate the Base of the 5th metatarsal?

Answer 22

AP foot
APO Foot medial rotation
Lateral foot

Question 23

When radiographing the foot in the AP oblique projection, medial rotation, the foot is rotated ____ degrees toward the medial side

Answer 23

30 degrees

Question 24

What piece of accessory equipment may be needed for foot radiography?

Answer 24

wedge sponge

Question 25

Which of the following Radiographic procedures will demonstrate the Cuboid bone?

Answer 25

Lateral Foot AP Foot APO Foot Medial rotation

Question 26

For an AP oblique projection, medial rotation of the ankle, mortise view, how must the malleoli be positioned in relation to the plane of the image receptor?

Answer 26

Parallel

Question 27

Chronic metabolic disease of bone marked by weakened, deformed and thickened bone that fractures easily is a condition known as:

Answer 27

Pagets disease

Question 28

Which of the following Technical factors may be adjusted to change the exposure index number?

Answer 28

mAs kVp SID

Question 29

How many metatarsal bones are in the foot?

Answer 29

5

Question 30

The second largest bone in the body is the:

Answer 30

tibia

Question 31

The tibial plateaus slope _____ 10 to 20 degrees

Answer 31

posterior

Question 32

Which of the following articulations participate in the formation of the ankle mortise

Answer 32

Talofibular Tibiotalar

Question 33

Evaluation criteria for an AP projection of the ankle includes: 1. distal tibia slightly overlaps the distal fibula 2. the calcaneus is well visualized. 3. plantar surface of the foot is vertical to the receptor.

Answer 33

1 and 3

Question 34

The heel bone is also known as the _____ and is the largest of the tarsal bones.

Answer 34

calcaneus

Question 35

How many bones make up the entire foot

Answer 35

26

Question 36

How many phalanges are in the foot?

Answer 36

14

Question 37

For an oblique projection of the ankle, the leg is rotated:

Answer 37

internally, 45 degrees

Question 38

On an image of an AP projection of the lower leg, the tibia and fibula should be free from superimposition at:

Answer 38

neither the proximal nor distal ends

Question 39

In which projection of the foot are the sinus tarsi, cuboid, and tuberosity of the metatarsal best demonstrated?

Answer 39

medial oblique foot

Question 40

What technical factor must be increased to better penetrate the anatomical part?

Answer 40

Kvp

Question 41

The navicular lies on the ________ side of the foot.

Answer 41

medial

Question 42

When positioning a patient for a lateral (mediolateral) projection of the lower leg, which of the following criteria are true? 1. the femoral condyles are perpendicular to the cassette. 2. the articulating joints of the femur and the ankle must be included. 3. the cassette may be positioned kitty-corner to ensure knee and ankle joints are included on the radiograph.

Answer 42

123

Question 43

Where is the lateral malleolus located in the leg?

Answer 43

distal fibula

Question 44

The superior surface of the foot is termed the:

Answer 44

dorasal