Lower Extremitites
For an AP mortise ankle radiograph,what is the correct CR angulation
0
For a lateral calcaneus radiograph, the central ray should be centered:
1 in distal to medial malleolus
Which of the following is the correct CR entrance point for an AP medial oblique projection of the knee
1/2 inch inferior to the apex of the patella
For an AP mortise ankle radiograph, it is necessary to rotate the patient's foot
15-20
To what degree should the patient's foot be rotated for a medial oblique foot radiograph
30
What is the correct degree of part obliquity for an oblique image of the foot
30
What is the correct CR angulation for a plantodorsal, axial calcaneus radiograph
40 cephalad
For an AP axial Beclere knee radiograph, the affected knee should be flexed to place the femur at an angle of
40-60
Oblique projection of the knee require how much rotation of the leg
45
A hyperstenic patient is scheduled for knee radiographs. How should the CR be directed for the AP projection
5 degrees cephalad
Which of the following is the correct CR location for an AP 5th digit radiograph
5th MTP joint
Which 2 bones articulates with the cuboid
5th metatarsal calcaneus
If an image of the ankle demonstrates the lateral malleolus slightly superimposing the lateral edges of the talus, which projection was used
AP
Which projection of the foot will best demonstrate the head of the 1st metatarsal equally superimposed by two sesamoid bones
AP
Which view of the ankle is taken routinely when potential trauma or sprains of the ankle joint are involved to assess the structural integrity of the ankle?
AP mortise
A patient presents on a backboard with trauma to the leg following a motor vehicle accident. The patient has pain and swelling just superior to the knee. Which of the following images should be taken prior to consultation with the physician
AP proximal femur Cross table lateral distal femur AP distal femur
In order to demonstrate the effects of gravity on the structures of the knee joint space, which of the following projections would be most helpful
AP weight bearing
Identify the structure that is represented by the letter A
Acetabulum
The rationale for a 5 degree caudal angulation of the CR on an AP projection of the knee is an average adult patient, whose ASIS lies 6.5 inches from the table top, is to align the
Anterior and posterior borders of the tibial plateau
A patient presents in the RD for lower leg radiographs after injuring the distal tibia. The patient has very long legs and it is impossible to fir the entire leg on the IR. WHich of the following would be the best radiographs to take for this patient
Ap and lateral tib/fib to included ankle AP and lateral knee
What is the CR entrance point for a lateral projection of the foot
Base of 3rd metatarsal
What is the correct CR entrance point for a medial oblique foot radiograph
Base of 3rd metatarsal
Which method of demonstrating the intercondylar fossa places the patient in an AP axial position
Beclere method
Which of the following describes the appropriate IR placement for a lateral image of the distal femur
Bottom of IR 2 inches distal to the patellar apex
Identify the structure that is represented by the letter A
Calcaneocuboid joint
What can be said of a lateral projection ankle radiograph that demonstrates superimposition of the medial and lateral talar domes and the fibula superimposed over the posterior half of the tibia
Correctly positioned
The medial and lateral intercondylar tubercles serve as attachments for which of the following
Cruciate ligaments
Where is the medial malleolus located
Distal tibia
When positioning the patient for a plantodorsal axial projection of the calcaneus, the food should be flexed using what motion
Dorsiflexion
Identify the structure that is represented by the letter A
Femoral shaft
Identify the structure that is represented by the letter A
Femur
What is the classification of the distal tibiofibular joint
Fibrous
The settegast method should not be attempted until what has been ruled out by other projections
Fracture of the patella
Identify the structure that is represented by the letter A
Head of the femur
What is the classification of the tibiotalar joint
Hinge
The beclere method of the intercondylar fossa is not a preferred position because of distortion from the CR angle and what other disadvantages of an AP axial view.
Increase OID
A tech adjusts the IR so that is is oriented diagonally to include the entire lower leg on a radiograph. What other modification should the tech make in this situation
Increase the SID
Identify the structure that is represented by the letter A
Intermediate phalanx of 2nd digit
Which projection of the foot best demonstrates the sinus tarsi
Internal oblique
Which projection of the foot will best demonstrate the cuboid and its articulations
Internal oblique
A particular radiograph demonstrates an open proximal tibiofibular joint, the medial patella free of superimposition, and an open femorotibial joint. Which projection does this describe
Internal oblique knee
Which of the following statements can accurately be made about the following AP ankle radiograph
It is not properly dorsiflexed
Which projection of the ankle would best demonstrate a Jones fracture
Lateral
When performing an AP radiograph of the distal femur, how should the leg be adjusted
Leg rotated so that toes point directly upward and femoral condyles equidistant to the IR
Which of the following anatomical structures is most commonly affect by gout
MTP joint of 1st toe
Identify the structure that is represented by the letter A
Medial Tibial condyle
Where should the CR enter for a lateral projection of the ankle
Medial malleolus
Which of the following would be classified as an ellipsoidal joint
Metatarsophalangeal joint
What is the condition described as an avulsion fracture of the tibial tuberosity
Osgood Schlatter disease
Which 2 of the following projections may safety be used to demonstrate a horizontal fracture of the patella
PA Lateral
Identify the structure that is represented by the letter B
PIP of 5th digit
Identify the structure that is represented by the letter A
Patella
Which of the following are the proper positioning details for a tangential sesamoid radiograph, assuming that there is proper dorsiflexion of the foot
Patient seated or lying 40 SID no tube angle
Upon review of an AP image of the lower leg the tech notices that the head of the fibula is almost entirely superimposed by the tibia. Which of the following descriptions best applies to this image
Patient's leg is externally rotated too much
Which are accurate regarding lateral ankle radigraphs
Planter surface of the foot is perpendicular to the IR Dorsiflex the foot
The adductor tubercle is located where on the femur
Posterior medial condyle
Which of the following conditions would be visualized on routine ankle radiographs
Potts fracture
Identify the structure that is represented by the letter C
Proximal Phalanx of the 5th digit
What is the rationale for angulation of the CR when performing an AP foot radiograph
Reduce foreshortening of the metatarsals
The tech evaluates an AP projection of the tibia and notices that both joints are included on the image, the fibula lies parallel to the tibia, and the proximal tibiofibular joint is open. What is the correct action for this tech to take next
Repeat the image because it was internally rotated
Identify the structure that is represented by the letter E
Sesamoid bone
Which method of the tangential projection of the patella requires a 90 degrees minimum flexion of the knee
Settegast method
Identify the structure that is represented by the letter A
Shaft of the femur
Identify the structure that is represented by the letter A
Shaft of the fibula
Identify the structure that is represented by the letter A
Shaft of the tibia
Identify the structure that is represented by the letter A
Superimposed condyles
What are the proper positioning guidelines for an AP Beclere knee radiograph
Supine with no body rotatin
What portion of the foot should appear in profile medially if there is no rotation demonstrated on a plantodorsal axial projection of the calcaneus
Sustentaculum tali
Which 3 joint spaces should appear open to demonstrate no rotation on a lateral view of the calcaneus
Talonabicular joint Calcaneocuboid joint Tibiotalar joint
What anatomy should be demonstrated superiorly on a lateral view of the calcaneus
Talus and distal tibia-fibula
The projection demonstrated in the radiograph is the
Tangential projection of the toes for sesamoids
When performing a lateral digit radiograph, what should be used to separate the affected digit form the other digits
Tape
Which of the following best describes the CR for the projection demonstrated in the image
The CR is perpendicular to the IR and should skim the plantar surface of the foot tangentially at the 1st MTP joint
Which two of the following statements are accurate regarding a lateral proximal femur image
The femoral head and acetabulum are included The lesser trochanter is in profile medially
When evaluating an AP proximal femur radiograph the tech observes the following: the bony trabecular detail is seen, collimation includes all soft tissue detail, the acetabulum is visible, and the lesser trochanter is visible without superimposition. What can the tech conclude about this radiograph
The image should be repeated because the leg was no internally rotated appropriately
Which of the following statements about the femur is true
The shaft slants medially 5-15 degrees
Identify the structure that is represented by the letter A
Tibia
How should the IR be placed when performing an AP proximal femur radiograph
Top of the IR at the level of the ASIS
How will a bone appear in a femur radiograph for a patient with a history of osteopetrosis
Whiter than normal
When performing a recumbent lateral projection of the knee, how should the patient's knee be positioned
flexed 20-30
Which 3 of the following statements are accurate if taking a radiograph of a alteral femur while using DR imaging equipment
kVp range between 80-90 Use AEC A grid should be used any time the anatomic part measures greater than 4 inches
Identify the structure that is represented by the letter A
medial femoral condyle
HOw should the foot be positioned to demonstrate the ankle mortise
medially rotated 15
In order to demonstrate the distal tibiofibular joint, how should the foot be positioned
medially, 45 degrees
An adult patient measures 8 inches from the ASIS to the tabletop. How should the CR be angled for an external oblique image of the knee
no angle
What is the normal CR angulation for a PA projection of the patella on an average adult patient positioned with the foot dorsiflexed and resting on the toes
no angle
Which of the following is the proper positioning guidelines for a medial oblique digit radiograph
patient seated or lying on the table, 40 SID, tube angulation as needed
For a plantodorsal, axial calcaneus radiograph, correct patient positioning includes
seated, legs fully extened, with the foot dorsiflexed
For a tangential sesamoids radiograph in a supine position, the patient's toes should be dorsiflexed utilizing
tape
Which projection of the foot will best demonstrate pathology of the ligaments of the longitudinal arch of the foot
weight bearing lateral
