LRA 224 (RADIOLOGY) FINAL REVIEW QUESTIONS AND
ANSWERS!!
The gonion corresponds to the vertebral level of
Answers :C3
Why is the chin extended for a lateral projection of the cervical spine?
Answers :to prevent superimposition of the mandible on the spine
A radiograph of a left posterior oblique (LPO) projection of the lumbar spine
reveals that the downside pedicle is projected too far posterior on the vertebral
body. What specific positioning error is present on this radiograph?
Answers :Excessive rotation of the spine
Which of the following structures is located at the level of ASIS
Answers :S1-S2
The anterior oblique ( RAO/LAO) positions of the lumbar spine will demonstrate
the zygapophyseal joints closest to the image receptor. T/F
Answers :False
If the waist is supported properly, an average-size patient does not require any CR
angulation for the lateral lumbar spine projection. T/F
Answers :True
An abnormal lateral curvature of the spine is a congenital condition, termed
Answers :scoliosis
, A patient comes to radiology for a follow up study of the lumbar spine. The patient
had a spinal fusion performed at the L3 through L4 level four months earlier.
Which of the following would best demonstrate the degree of movement at the
fusion site.
Answers :Lateral flexion/extension
Scoliosis is defined as an abnormal or exaggerated ______ curvature
Answers :Lateral
What is another term for the sacral horns?
Answers :cornu of the sacrum
The zygapophyseal joints of the upper lumbar vertebrae are ___ in relationship to
the midsagittal plane.
Answers :50 degrees
Which of the following is not a correct evaluation criterion for the AP axial C spine
projection?
Answers :All of the above are correct criteria.
On average, how many separate bones make up the adult vertebral column
Answers :26
A key advantage of posterianterior (PA) projection taken during a pediatric
scoliosis study as compared with the AP projection is that a reduces
Answers :It reduces breast and thyroid dose by 90%
ANSWERS!!
The gonion corresponds to the vertebral level of
Answers :C3
Why is the chin extended for a lateral projection of the cervical spine?
Answers :to prevent superimposition of the mandible on the spine
A radiograph of a left posterior oblique (LPO) projection of the lumbar spine
reveals that the downside pedicle is projected too far posterior on the vertebral
body. What specific positioning error is present on this radiograph?
Answers :Excessive rotation of the spine
Which of the following structures is located at the level of ASIS
Answers :S1-S2
The anterior oblique ( RAO/LAO) positions of the lumbar spine will demonstrate
the zygapophyseal joints closest to the image receptor. T/F
Answers :False
If the waist is supported properly, an average-size patient does not require any CR
angulation for the lateral lumbar spine projection. T/F
Answers :True
An abnormal lateral curvature of the spine is a congenital condition, termed
Answers :scoliosis
, A patient comes to radiology for a follow up study of the lumbar spine. The patient
had a spinal fusion performed at the L3 through L4 level four months earlier.
Which of the following would best demonstrate the degree of movement at the
fusion site.
Answers :Lateral flexion/extension
Scoliosis is defined as an abnormal or exaggerated ______ curvature
Answers :Lateral
What is another term for the sacral horns?
Answers :cornu of the sacrum
The zygapophyseal joints of the upper lumbar vertebrae are ___ in relationship to
the midsagittal plane.
Answers :50 degrees
Which of the following is not a correct evaluation criterion for the AP axial C spine
projection?
Answers :All of the above are correct criteria.
On average, how many separate bones make up the adult vertebral column
Answers :26
A key advantage of posterianterior (PA) projection taken during a pediatric
scoliosis study as compared with the AP projection is that a reduces
Answers :It reduces breast and thyroid dose by 90%
