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