Radiographic procedures Chapter 9 Questions
and Answers 100% Solved
A radiograph of an 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 ✔️✔️Excessive rotation of the spine
A radiograph of an AP axial coccyx reveals that the symphysis pubis is superimposed over the
distal end of the coccyx. What modifications will correct this problem during repeat exposure
✔️✔️Increase the CR angulation
A patient comes to radiology for a follow up study of the lumbar spine. The patient had a spinal
fusion performed at the L3-L4 level four months earlier. What would best demonstrate the
degree of movement at the fusion site ✔️✔️Lateral hyperextension and hyperflexion
projections
Another term for sacral horns is the ✔️✔️cornu of the sacrum
The anterior oblique (RAO and LAO) positions of the lumbar spine will demonstrate the
zygapophyseal joints ✔️✔️farthest from the image receptor.
Where is the CR centered for an AP projection of the lumbar spine with a 14X17 inch IR
✔️✔️at the iliac crest
What is the CR angulation for the lateral lumbar spine projection when the waist is supported
properly ✔️✔️No angle is required
, What CR angulation should be used for an AP axial projection of the L5-S1 joint space on a male
patient ✔️✔️30 degrees cephalad
Gonadal shielding must always be used on female patients for an AP lumbar spine projection
✔️✔️false
Bone densitometry is accurate to within ✔️✔️1% and the radiation skin dose is very low
What type of CR angulation is required for an AP axial projection of the coccyx ✔️✔️10
degrees caudad
What type of lesion is destructive with irregular margins and increased density
✔️✔️osteoblastic (increased density) osteolytic (irregular margins) type of metastases
An abnormal lateral curvature of the spine is a congenital condition is termed ✔️✔️scoliosis
A radiograph of a lateral projection of the lumbar spine reveals that the mid- to lower-
intervertebral joint spaces are not open. The patient's waist was supported. What
modification/modifications will help open these joint spaces during the repeat exposure
✔️✔️increase waist support and/or angle CR 5-8 degrees caudal
A radiograph of an AP axial sacrum reveals that it is foreshortened and the sacral foramina are
not clearly seen. The patient was in an AP supine position, and the technologist angled the CR
10° cephalad. What specific positioning error is present on this radiograph ✔️✔️Insufficient CR
angulation
A radiograph of an AP axial L5-S1 projection reveals that the joint space is not open. The
following factors were used on this female patient: 80 kV, 40-inch (102 cm) SID, grid, 35°
and Answers 100% Solved
A radiograph of an 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 ✔️✔️Excessive rotation of the spine
A radiograph of an AP axial coccyx reveals that the symphysis pubis is superimposed over the
distal end of the coccyx. What modifications will correct this problem during repeat exposure
✔️✔️Increase the CR angulation
A patient comes to radiology for a follow up study of the lumbar spine. The patient had a spinal
fusion performed at the L3-L4 level four months earlier. What would best demonstrate the
degree of movement at the fusion site ✔️✔️Lateral hyperextension and hyperflexion
projections
Another term for sacral horns is the ✔️✔️cornu of the sacrum
The anterior oblique (RAO and LAO) positions of the lumbar spine will demonstrate the
zygapophyseal joints ✔️✔️farthest from the image receptor.
Where is the CR centered for an AP projection of the lumbar spine with a 14X17 inch IR
✔️✔️at the iliac crest
What is the CR angulation for the lateral lumbar spine projection when the waist is supported
properly ✔️✔️No angle is required
, What CR angulation should be used for an AP axial projection of the L5-S1 joint space on a male
patient ✔️✔️30 degrees cephalad
Gonadal shielding must always be used on female patients for an AP lumbar spine projection
✔️✔️false
Bone densitometry is accurate to within ✔️✔️1% and the radiation skin dose is very low
What type of CR angulation is required for an AP axial projection of the coccyx ✔️✔️10
degrees caudad
What type of lesion is destructive with irregular margins and increased density
✔️✔️osteoblastic (increased density) osteolytic (irregular margins) type of metastases
An abnormal lateral curvature of the spine is a congenital condition is termed ✔️✔️scoliosis
A radiograph of a lateral projection of the lumbar spine reveals that the mid- to lower-
intervertebral joint spaces are not open. The patient's waist was supported. What
modification/modifications will help open these joint spaces during the repeat exposure
✔️✔️increase waist support and/or angle CR 5-8 degrees caudal
A radiograph of an AP axial sacrum reveals that it is foreshortened and the sacral foramina are
not clearly seen. The patient was in an AP supine position, and the technologist angled the CR
10° cephalad. What specific positioning error is present on this radiograph ✔️✔️Insufficient CR
angulation
A radiograph of an AP axial L5-S1 projection reveals that the joint space is not open. The
following factors were used on this female patient: 80 kV, 40-inch (102 cm) SID, grid, 35°
