LRA 220 Weeks 1,2,3 & Final Exams STUDY
BUNDLE PACKAGE| Questions and Verified
Answers - (2024/ 2025 Update) 100% Correct|
Grade A
How much central ray (CR) angulation (if any) should be used for an AP projection of
the toes? - ANSWER10° to 15° toward calcaneus
T/F A correctly positioned AP 45° medial oblique ankle projection frequently may
also demonstrate a fracture of the base of the fifth metatarsal if present. -
ANSWERTrue
Which of the following projections of the ankle will best demonstrate the open joint
space of the lateral aspect of the ankle joint? - ANSWERAP mortise projection
To decrease the angle between the anterior surface of the foot and anterior surface
of the lower leg is described as: - ANSWERDorsiflexion
What CR angulation is required for the AP oblique projection of the foot? -
ANSWERCR is perpendicular to the IR
How much CR angulation to the long axis of the foot is required for the plantodorsal
(axial) projection of the calcaneus? - ANSWER40°
How much rotation from an AP position of the ankle will typically produce an AP
mortise projection? - ANSWER15° to 20°
The purpose of the AP stress views of the ankle is to demonstrate: - ANSWERpossible
joint separations or ligament tear
A radiograph of an AP medial oblique projection of the foot, if positioned correctly,
should demonstrate: - ANSWERthird through fifth metatarsals free of
superimposition.
A radiograph of an AP ankle projection reveals that the lateral joint space is not open
(lateral malleolus is partially superimposed by the talus). The superior and medial
joint spaces are open. What should the technologist do to correct this problem and
improve the image? - ANSWERNothing; this is an acceptable image
A radiograph of a AP mortise projection of the ankle reveals that the lateral
malleolus is slightly superimposed over the talus and the lateral joint space is not
open. What is most likely the cause for this radiographic outcome? -
ANSWERInsufficient medial rotation of the foot and ankle
BUNDLE PACKAGE| Questions and Verified
Answers - (2024/ 2025 Update) 100% Correct|
Grade A
How much central ray (CR) angulation (if any) should be used for an AP projection of
the toes? - ANSWER10° to 15° toward calcaneus
T/F A correctly positioned AP 45° medial oblique ankle projection frequently may
also demonstrate a fracture of the base of the fifth metatarsal if present. -
ANSWERTrue
Which of the following projections of the ankle will best demonstrate the open joint
space of the lateral aspect of the ankle joint? - ANSWERAP mortise projection
To decrease the angle between the anterior surface of the foot and anterior surface
of the lower leg is described as: - ANSWERDorsiflexion
What CR angulation is required for the AP oblique projection of the foot? -
ANSWERCR is perpendicular to the IR
How much CR angulation to the long axis of the foot is required for the plantodorsal
(axial) projection of the calcaneus? - ANSWER40°
How much rotation from an AP position of the ankle will typically produce an AP
mortise projection? - ANSWER15° to 20°
The purpose of the AP stress views of the ankle is to demonstrate: - ANSWERpossible
joint separations or ligament tear
A radiograph of an AP medial oblique projection of the foot, if positioned correctly,
should demonstrate: - ANSWERthird through fifth metatarsals free of
superimposition.
A radiograph of an AP ankle projection reveals that the lateral joint space is not open
(lateral malleolus is partially superimposed by the talus). The superior and medial
joint spaces are open. What should the technologist do to correct this problem and
improve the image? - ANSWERNothing; this is an acceptable image
A radiograph of a AP mortise projection of the ankle reveals that the lateral
malleolus is slightly superimposed over the talus and the lateral joint space is not
open. What is most likely the cause for this radiographic outcome? -
ANSWERInsufficient medial rotation of the foot and ankle
