RAD 112 FINAL EXAM REVIEW QUESTIONS &
ANSWERS
Base of the third metatarsal - Answers :Where does the central ray enter on the axial
projection of the calcaneus?
lateral (mediolateral) - Answers :Which of the following is the essential lateral projection
of the calcaneus?
* No rotation of heel
* Open talocalcaneal joint
* Sinus tarsi open
* Calcaneocuboid joint space open - Answers :Which of the following evaluation
criteria(s) will demonstrate no rotation of lateral heel?
90 degrees from the plane of the IR - Answers :For the axial projection of the calcaneus,
the ankle should be dorsiflexed so the plantar surface of the foot is:
sustentaculum tali - Answers :The bony projection on the upper, medial aspect of the
calcaneus that creates a "shelf" to hold the head of the talus is the
Calcaneus - Answers :Which structure or bone contains the sustentaculum tali?
* No rotation of heel
* Portion of the sustentaculum tali in profile medially
* Open talocalcaneal joint space
* Calcaneal tuberosity in profile - Answers :Which of the following evaluation criteria(s)
are demonstrated on the axial heel projection? Choose four that apply
40° cephalad - Answers :How much CR angulation to the long axis of the foot is
required for the plantodorsal (axial) projection of the calcaneus?
14X17 IR should include knee and lower leg or 10X12 at injury site - Answers :How
should IR be placed to include injury to the knee on a lower leg exam?
True - Answers :True or False: A correctly positioned lateral ankle will demonstrate the
lateral malleolus superimposed over the posterior half of the tibia.
45 degrees - Answers :The medial and lateral oblique projections of the ankle require
the leg and foot to be rotated how many degrees?
True - Answers :True or False: Follow-up radiographs for a fractured tibia and fibula
may include only the joint closest to the site of injury.
,Narrowing of ankle joint space - Answers :What is the purpose for weight-bearing ankle
view?
2 inches - Answers :How far should the IR extend beyond the ankle or knee joint for an
AP projection of the lower leg?
False - Answers :True or False: The fibula is commonly called the shin bone.
* Medial & lateral malleoli
* Distal 1/3rd of tibia-fibula
* Talus
* Proximal half of metatarsals
* Medial mortise is open
* Lateral mortise closed
* Talus with proper brightness
* Tibiotalar joint space
* Slight superimposition of distal fibula by distal tibia and talus - Answers :Which of the
following evaluation criterias will be demonstrated on a correctly positioned AP Ankle
projection ?
medial malleolus - Answers :For a lateral projection of the ankle, the central ray must
enter the:
ankle joint, midway between the malleoli - Answers :For an AP projection of the ankle,
the central ray must enter the:
True - Answers :True or False: A correctly positioned AP 45-degree medial oblique
ankle projection frequently may also demonstrate a fracture of the base of the fifth
metatarsal if present.
* Knee Joint
* Ankle Joint - Answers :Which of the following should be clearly demonstrated on a
lateral projection of the lower leg?
Dorsiflexion - Answers :Extending the ankle joint or pulling the foot and toes back
toward the ankle and lower leg is called:
parallel to the IR - Answers :What is the position of the femoral condyles when the leg is
properly positioned for an AP projection of lower leg?
Ankle mortise - Answers :Which of the following is not clearly demonstrated on an AP
projection of the ankle?
* No rotation of heel
* Open talocalcaneal joint
, * Calcaneus and subtalar joint - Answers :Evaluation Criteria: Axial Heel: Choose three
that apply
use two seperate films - Answers :To ensure that both joints are included on the
AP/Lateral projection of the tibia and fibula on an adult, the technologist should:
* Distal tibia and fibula, talus, calcaneus and adjacent tarsals
* Tibiotalar joint well visualized
* Fibula over posterior half of tibia - Answers :Evaluation Criteria: Lateral Heel: Choose
three that apply
* Lower leg and ankle should form 90 degree angle
* Prevents lateral rotation - Answers :What is the purpose for dorsiflexion on the lateral
ankle view? Choose all that apply.
in dorsiflexion - Answers :To prevent lateral rotation, how should the foot be positioned
for a lateral projection of the ankle?
AP oblique with 45-degree rotation - Answers :Which projection of the ankle best
demonstrates the distal tibiofibular joint?
* lateral malleolus of the fibula
* medial malleolus of the tibia
* inferior surface of the tibia - Answers :Which of the following forms the ankle
"mortise"?
* Distal fibula lying over posterior half of tibia
* Slight overlap of tibia on proximal fibular head
* Separation of tibial and fibular bodies or shafts - Answers :Which of the following
evaluation criteria will be demonstrated on the lateral lower leg projection?
Condyles - Answers :The proximal end of the tibia presents two prominent processes
called the:
AP oblique, 15- to 20-degree internal rotation - Answers :Which projection will clearly
demonstrate the joint spaces between the talus and both malleoli?
over the posterior half of the tibia - Answers :Where will the fibula be located on a
properly positioned lateral radiograph of the ankle?
* Proximal and distal articulations of tibia and fibula moderately overlapped
* Distal fibula lying over posterior half of tibia
* Tibal condyles in profile
* Intercondylar eminence centered with intercondylar fossa - Answers :Which of the
following evaluation criterias will be demonstrated on the AP projection of the lower
Leg?
ANSWERS
Base of the third metatarsal - Answers :Where does the central ray enter on the axial
projection of the calcaneus?
lateral (mediolateral) - Answers :Which of the following is the essential lateral projection
of the calcaneus?
* No rotation of heel
* Open talocalcaneal joint
* Sinus tarsi open
* Calcaneocuboid joint space open - Answers :Which of the following evaluation
criteria(s) will demonstrate no rotation of lateral heel?
90 degrees from the plane of the IR - Answers :For the axial projection of the calcaneus,
the ankle should be dorsiflexed so the plantar surface of the foot is:
sustentaculum tali - Answers :The bony projection on the upper, medial aspect of the
calcaneus that creates a "shelf" to hold the head of the talus is the
Calcaneus - Answers :Which structure or bone contains the sustentaculum tali?
* No rotation of heel
* Portion of the sustentaculum tali in profile medially
* Open talocalcaneal joint space
* Calcaneal tuberosity in profile - Answers :Which of the following evaluation criteria(s)
are demonstrated on the axial heel projection? Choose four that apply
40° cephalad - Answers :How much CR angulation to the long axis of the foot is
required for the plantodorsal (axial) projection of the calcaneus?
14X17 IR should include knee and lower leg or 10X12 at injury site - Answers :How
should IR be placed to include injury to the knee on a lower leg exam?
True - Answers :True or False: A correctly positioned lateral ankle will demonstrate the
lateral malleolus superimposed over the posterior half of the tibia.
45 degrees - Answers :The medial and lateral oblique projections of the ankle require
the leg and foot to be rotated how many degrees?
True - Answers :True or False: Follow-up radiographs for a fractured tibia and fibula
may include only the joint closest to the site of injury.
,Narrowing of ankle joint space - Answers :What is the purpose for weight-bearing ankle
view?
2 inches - Answers :How far should the IR extend beyond the ankle or knee joint for an
AP projection of the lower leg?
False - Answers :True or False: The fibula is commonly called the shin bone.
* Medial & lateral malleoli
* Distal 1/3rd of tibia-fibula
* Talus
* Proximal half of metatarsals
* Medial mortise is open
* Lateral mortise closed
* Talus with proper brightness
* Tibiotalar joint space
* Slight superimposition of distal fibula by distal tibia and talus - Answers :Which of the
following evaluation criterias will be demonstrated on a correctly positioned AP Ankle
projection ?
medial malleolus - Answers :For a lateral projection of the ankle, the central ray must
enter the:
ankle joint, midway between the malleoli - Answers :For an AP projection of the ankle,
the central ray must enter the:
True - Answers :True or False: A correctly positioned AP 45-degree medial oblique
ankle projection frequently may also demonstrate a fracture of the base of the fifth
metatarsal if present.
* Knee Joint
* Ankle Joint - Answers :Which of the following should be clearly demonstrated on a
lateral projection of the lower leg?
Dorsiflexion - Answers :Extending the ankle joint or pulling the foot and toes back
toward the ankle and lower leg is called:
parallel to the IR - Answers :What is the position of the femoral condyles when the leg is
properly positioned for an AP projection of lower leg?
Ankle mortise - Answers :Which of the following is not clearly demonstrated on an AP
projection of the ankle?
* No rotation of heel
* Open talocalcaneal joint
, * Calcaneus and subtalar joint - Answers :Evaluation Criteria: Axial Heel: Choose three
that apply
use two seperate films - Answers :To ensure that both joints are included on the
AP/Lateral projection of the tibia and fibula on an adult, the technologist should:
* Distal tibia and fibula, talus, calcaneus and adjacent tarsals
* Tibiotalar joint well visualized
* Fibula over posterior half of tibia - Answers :Evaluation Criteria: Lateral Heel: Choose
three that apply
* Lower leg and ankle should form 90 degree angle
* Prevents lateral rotation - Answers :What is the purpose for dorsiflexion on the lateral
ankle view? Choose all that apply.
in dorsiflexion - Answers :To prevent lateral rotation, how should the foot be positioned
for a lateral projection of the ankle?
AP oblique with 45-degree rotation - Answers :Which projection of the ankle best
demonstrates the distal tibiofibular joint?
* lateral malleolus of the fibula
* medial malleolus of the tibia
* inferior surface of the tibia - Answers :Which of the following forms the ankle
"mortise"?
* Distal fibula lying over posterior half of tibia
* Slight overlap of tibia on proximal fibular head
* Separation of tibial and fibular bodies or shafts - Answers :Which of the following
evaluation criteria will be demonstrated on the lateral lower leg projection?
Condyles - Answers :The proximal end of the tibia presents two prominent processes
called the:
AP oblique, 15- to 20-degree internal rotation - Answers :Which projection will clearly
demonstrate the joint spaces between the talus and both malleoli?
over the posterior half of the tibia - Answers :Where will the fibula be located on a
properly positioned lateral radiograph of the ankle?
* Proximal and distal articulations of tibia and fibula moderately overlapped
* Distal fibula lying over posterior half of tibia
* Tibal condyles in profile
* Intercondylar eminence centered with intercondylar fossa - Answers :Which of the
following evaluation criterias will be demonstrated on the AP projection of the lower
Leg?
