LRA 220 Final Review Exam Questions
and Answers6
where should the central ray be directed for a lateral calcaneus radiograph? - ANSWERS-1in
inferior to medial malleolus
which knee projection is preferable for examining the fibular head of a fractured lower limb? -
ANSWERS-Medial oblique knee
what CR angulation is required for the AP oblique projection of the foot? - ANSWERS-CR is
perpendicular to IR
A radiograph appearance of a well-circumscribed lucency within bones describes what
pathology - ANSWERS-bone cyst
the best method of evaluating injuries to the menisci and ligaments of the knee joint involves -
ANSWERS-MRI
what are the palpable bony landmarks - ANSWERS-ASIS
ischial tuberosity
greater trochanter
symphysis pubis
a. radiograph of an AP medial oblique projection of the foot, of positioned correctly, should
demonstrate? - ANSWERS-third through the fifth metatarsals free of superimposition
, A radiograph of an AP pelvis reveals that the right iliac wing is foreshortened as compared with
the left side. What specific positioning problem is present? - ANSWERS-excessive left rotation
A study of a prosthetic hip demonstrates that the end of the prosthesis is cut off on the AP
projection, but the entire device is demonstrated on the lateral projection. What should the
technologist do next? - ANSWERS-repeat of the AP projection only
how much flexion of the knee is recommended for the lateral projection of the patella -
ANSWERS-5-10 degrees or less
where is the CR placed for an AP projection of the pelvis - ANSWERS-Midway btwn ASIS and
symphysis pubis
for the AP weight-bearing knee projection on an average patient, the CR should be - ANSWERS-
perpendicular to the IR
which one of the following projections will best demonstrate signs of Osgood-Schlatter disease?
- ANSWERS-AP and lateral knee
A correctly positioned lateral ankle will demonstrate the lateral malleolus superimposed over
the posterior half of the tibia? T/F - ANSWERS-true
A radiograph of an 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 mostly likely
the cause fot this radiographic outcome? - ANSWERS-under-rotation of the ankle (toward the
medial direction)
What is the CR for an AP knee - ANSWERS-1/2 in bellow apex of patella
and Answers6
where should the central ray be directed for a lateral calcaneus radiograph? - ANSWERS-1in
inferior to medial malleolus
which knee projection is preferable for examining the fibular head of a fractured lower limb? -
ANSWERS-Medial oblique knee
what CR angulation is required for the AP oblique projection of the foot? - ANSWERS-CR is
perpendicular to IR
A radiograph appearance of a well-circumscribed lucency within bones describes what
pathology - ANSWERS-bone cyst
the best method of evaluating injuries to the menisci and ligaments of the knee joint involves -
ANSWERS-MRI
what are the palpable bony landmarks - ANSWERS-ASIS
ischial tuberosity
greater trochanter
symphysis pubis
a. radiograph of an AP medial oblique projection of the foot, of positioned correctly, should
demonstrate? - ANSWERS-third through the fifth metatarsals free of superimposition
, A radiograph of an AP pelvis reveals that the right iliac wing is foreshortened as compared with
the left side. What specific positioning problem is present? - ANSWERS-excessive left rotation
A study of a prosthetic hip demonstrates that the end of the prosthesis is cut off on the AP
projection, but the entire device is demonstrated on the lateral projection. What should the
technologist do next? - ANSWERS-repeat of the AP projection only
how much flexion of the knee is recommended for the lateral projection of the patella -
ANSWERS-5-10 degrees or less
where is the CR placed for an AP projection of the pelvis - ANSWERS-Midway btwn ASIS and
symphysis pubis
for the AP weight-bearing knee projection on an average patient, the CR should be - ANSWERS-
perpendicular to the IR
which one of the following projections will best demonstrate signs of Osgood-Schlatter disease?
- ANSWERS-AP and lateral knee
A correctly positioned lateral ankle will demonstrate the lateral malleolus superimposed over
the posterior half of the tibia? T/F - ANSWERS-true
A radiograph of an 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 mostly likely
the cause fot this radiographic outcome? - ANSWERS-under-rotation of the ankle (toward the
medial direction)
What is the CR for an AP knee - ANSWERS-1/2 in bellow apex of patella
