RAD 112 UNIT 2 EXAM 2025
QUESTIONS AND ANSWERS
(GRADED A+)
How much is the body rotated for an AP or PA axillary projection of the ribs?
Select one:
a. 30º
b. 45º
c. 20º-30º
d. 35º-45º - Answer-b. 45º
The CR angulation for the PA oblique projection of the sternoclavicular articulation
(body rotation technique) is:
Select one:
a. 5º cephalad
b. 7º cephalad
c. 10º cephalad
d. perpendicular - Answer-d. perpendicular
The space between each of the ribs is called the:
Select one:
a. costal cartilage
b. intercostal spaces
c. costovertebral joints
d. costotransverse joints - Answer-b. intercostal spaces
What are the positions most commonly employed for a radiographic examination of the
sternum?
1. Lateral
2. RAO
3. LAO
Select one:
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3 - Answer-a. 1 and 2 only
To help in determining that the sternum is positioned true lateral, the broad surface
across the width of the sternum should be perpendicular to the plane of the cassette for
the lateral projection of the sternum.
Select one:
,True
False - Answer-True
Which of the following positions may be used to effectively demonstrate the right
posterior axillary ribs?
Select one:
a. LAO
b. RAO
c. RPO
d. LPO - Answer-c. RPO
Why is an anterior oblique position preferred to a posterior oblique position for the
oblique of the sternum?
Select one:
a. To reduce object-to-image receptor distance OID of the sternum
b. To increase OID of the sternum
c. To prevent superimposition of the sternum with the vertebral column
d. To prevent motion of the sternum while using the breathing technique
e. more than one, but not all of the above - Answer-a. To reduce object-to-image
receptor distance OID of the sternum
Which procedure should be performed to demonstrate only one sternoclavicular joint
with the PA projection?
Select one:
a. Rest the patients head on the chin.
b. Direct the central ray 15 degrees medially.
c. Elevate the shoulder of the affected side 15 degrees
d. Turn the patients head to face the affected side. - Answer-d. Turn the patients head
to face the affected side.
For the PA oblique projection of the sternoclavicular joints, the RAO position will best
demonstrate the right sternoclavicular joint.
Select one:
True
False - Answer-True
What is the approximate length of the sternum for the average adult?
Select one:
a. 2 inches
b. 4 inches
c. 6 inches
d. 8 inches - Answer-c. 6 inches
The patient should breathe slowly during the exposure in and effort to blur lung
markings that may superimpose the sternum with the lateral projection of the sternum.
Select one:
, True
False - Answer-False
Pulmonary marking should be blurred when the patient is instructed to breathe slowly
during the exposure for a RAO sternum.
Select one:
True
False - Answer-True
Which procedure should be used to obtain radiographs of injured anterior ribs numbers
5 and 6?
Select one:
a. Patient upright; exposure taken on suspended inspiration
b. Patient upright; exposure taken on suspended expiration
c. Patient supine; exposure taken on suspended inspiration
d. Patient supine; exposure taken on suspended expiration - Answer-a. Patient upright;
exposure taken on suspended inspiration
What is the respiration phase for the AP projection of the ribs below the diaphragm?
Select one:
a. suspended respiration
b. full inspiration
c. full expiration
d. slow, shallow breathing - Answer-c. full expiration
Which projection and body position will demonstrate the sternum through the heart?
Select one:
a. PA oblique, RAO
b. PA oblique, LAO
c. AP oblique, RPO
d. AP oblique, LPO - Answer-a. PA oblique, RAO
Which of the following is the recommended breathing technique that should be used
when examining the ribs that lie at the level of the diaphragm?
Select one:
a. one deep inspiration (or expiration) and hold
b. two deep expirations (or inspirations) and hold
c. suspended respiration
d. slow, shallow breathing - Answer-b. two deep expirations (or inspirations) and hold
The central ray should be directed perpendicular to the lateral aspect of the manubrium
for the lateral projection of the sternum.
Select one:
True
False - Answer-False
QUESTIONS AND ANSWERS
(GRADED A+)
How much is the body rotated for an AP or PA axillary projection of the ribs?
Select one:
a. 30º
b. 45º
c. 20º-30º
d. 35º-45º - Answer-b. 45º
The CR angulation for the PA oblique projection of the sternoclavicular articulation
(body rotation technique) is:
Select one:
a. 5º cephalad
b. 7º cephalad
c. 10º cephalad
d. perpendicular - Answer-d. perpendicular
The space between each of the ribs is called the:
Select one:
a. costal cartilage
b. intercostal spaces
c. costovertebral joints
d. costotransverse joints - Answer-b. intercostal spaces
What are the positions most commonly employed for a radiographic examination of the
sternum?
1. Lateral
2. RAO
3. LAO
Select one:
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3 - Answer-a. 1 and 2 only
To help in determining that the sternum is positioned true lateral, the broad surface
across the width of the sternum should be perpendicular to the plane of the cassette for
the lateral projection of the sternum.
Select one:
,True
False - Answer-True
Which of the following positions may be used to effectively demonstrate the right
posterior axillary ribs?
Select one:
a. LAO
b. RAO
c. RPO
d. LPO - Answer-c. RPO
Why is an anterior oblique position preferred to a posterior oblique position for the
oblique of the sternum?
Select one:
a. To reduce object-to-image receptor distance OID of the sternum
b. To increase OID of the sternum
c. To prevent superimposition of the sternum with the vertebral column
d. To prevent motion of the sternum while using the breathing technique
e. more than one, but not all of the above - Answer-a. To reduce object-to-image
receptor distance OID of the sternum
Which procedure should be performed to demonstrate only one sternoclavicular joint
with the PA projection?
Select one:
a. Rest the patients head on the chin.
b. Direct the central ray 15 degrees medially.
c. Elevate the shoulder of the affected side 15 degrees
d. Turn the patients head to face the affected side. - Answer-d. Turn the patients head
to face the affected side.
For the PA oblique projection of the sternoclavicular joints, the RAO position will best
demonstrate the right sternoclavicular joint.
Select one:
True
False - Answer-True
What is the approximate length of the sternum for the average adult?
Select one:
a. 2 inches
b. 4 inches
c. 6 inches
d. 8 inches - Answer-c. 6 inches
The patient should breathe slowly during the exposure in and effort to blur lung
markings that may superimpose the sternum with the lateral projection of the sternum.
Select one:
, True
False - Answer-False
Pulmonary marking should be blurred when the patient is instructed to breathe slowly
during the exposure for a RAO sternum.
Select one:
True
False - Answer-True
Which procedure should be used to obtain radiographs of injured anterior ribs numbers
5 and 6?
Select one:
a. Patient upright; exposure taken on suspended inspiration
b. Patient upright; exposure taken on suspended expiration
c. Patient supine; exposure taken on suspended inspiration
d. Patient supine; exposure taken on suspended expiration - Answer-a. Patient upright;
exposure taken on suspended inspiration
What is the respiration phase for the AP projection of the ribs below the diaphragm?
Select one:
a. suspended respiration
b. full inspiration
c. full expiration
d. slow, shallow breathing - Answer-c. full expiration
Which projection and body position will demonstrate the sternum through the heart?
Select one:
a. PA oblique, RAO
b. PA oblique, LAO
c. AP oblique, RPO
d. AP oblique, LPO - Answer-a. PA oblique, RAO
Which of the following is the recommended breathing technique that should be used
when examining the ribs that lie at the level of the diaphragm?
Select one:
a. one deep inspiration (or expiration) and hold
b. two deep expirations (or inspirations) and hold
c. suspended respiration
d. slow, shallow breathing - Answer-b. two deep expirations (or inspirations) and hold
The central ray should be directed perpendicular to the lateral aspect of the manubrium
for the lateral projection of the sternum.
Select one:
True
False - Answer-False
