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LRA 214 Final Review Latest 2025
Update Actual Exam Questions and
Correct Answers Rated A+
The central ray (CR) for an anteroposterior (AP) supine, adult chest projection, should be centered
3 to 4 inches (8 to 10 cm) below the jugular notch.
Which one of the following clinical indications often requires the inspiration/expiration chest series to
be taken?
Small pneumothorax
Which type of body habitus typically requires that the image receptor be placed crosswise rather than
lengthwise for a posteroanterior (PA) chest?
Hypersthenic
A general rule states that radiographic grids must be used in chest radiography for:
exposure factors using 100 kV or greater.
Which of the following objects does NOT have to be removed or moved before a chest radiography?
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Glasses
A PA chest radiograph reveals only seven (7) ribs above the diaphragm on a healthy adult. Which of the
following suggestions would improve inspiration?
Take the exposure on a second inspiration
A PA chest radiograph reveals that the left sternoclavicular (SC) joint is closer to the spine than the right
joint. What specific positioning error has occurred?
rotation into the left anterior oblique (LAO) position
The attending physician is concerned about a pleural effusion in the left lung. The patient had surgery
recently and cannot stand. Which position/ projection would be best to rule out the pleural effusion?
left lateral decubitus (LLD)
For anterior oblique radiographs of the chest, the elongated (widened) aspect of the thorax is generally
farthest from the image receptor.
True
Which of the following is a condition in which all or part of a lung is collapsed, requiring an increase in
manual exposure factors?
atelectasis
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A correctly positioned lateral chest radiograph demonstrates some seperation of the posterior ribs due
to the divergence of the beam. But a seperation of greater than _____ cm indicates objectionable
rotation from a true lateral.
1 cm
Of the following factors, which one is most crucial to demonstrate possible air and fluid levels in the
chest?
patient in erect or decubitus position
Which of the following factors must be applied to minimize distortion of the heart?
72 inch SID
Of the following positioning actions, which one will remove the majority of the scapula from the lung
fields?
roll the shoulders forward
What is the primary disadvantage of performing an AP projection of the chest rather than a PA
projection?
increased magnification of the heart
Which of the following anatomic structures is examined to determine rotation on a PA chest
radiograph?
symmetric appearance of sternoclavicular (SC) joints
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Scoliosis and kyphosis may produce asymmetry of the sternoclavicular (SC) joints and rib cage as
demonstrated on a PA chest radiograph?
True
The left anterior oblique (LAO) position of the sternum provides the best frontal image of the sternum
with minimal distortion.
False
A right or left marker may be taped over the area of interest to indicate the location of trauma to the
ribs.
False
Which position can replace the RAO of the sternum if the patient cannot lie prone?
LPO
What is the recommended SID for the lateral sternum position?
60 to 72 inches
The two routine positions used to demonstrate the sternum are:
RAO and lateral
What degree of rotation is used for a routine RAO position of the sternum?
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LRA 214 Final Review Latest 2025
Update Actual Exam Questions and
Correct Answers Rated A+
The central ray (CR) for an anteroposterior (AP) supine, adult chest projection, should be centered
3 to 4 inches (8 to 10 cm) below the jugular notch.
Which one of the following clinical indications often requires the inspiration/expiration chest series to
be taken?
Small pneumothorax
Which type of body habitus typically requires that the image receptor be placed crosswise rather than
lengthwise for a posteroanterior (PA) chest?
Hypersthenic
A general rule states that radiographic grids must be used in chest radiography for:
exposure factors using 100 kV or greater.
Which of the following objects does NOT have to be removed or moved before a chest radiography?
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,https://www.stuvia.com/user/docstudent96 4/3/2026 https://www.stuvia.com/user/docstudent96
Glasses
A PA chest radiograph reveals only seven (7) ribs above the diaphragm on a healthy adult. Which of the
following suggestions would improve inspiration?
Take the exposure on a second inspiration
A PA chest radiograph reveals that the left sternoclavicular (SC) joint is closer to the spine than the right
joint. What specific positioning error has occurred?
rotation into the left anterior oblique (LAO) position
The attending physician is concerned about a pleural effusion in the left lung. The patient had surgery
recently and cannot stand. Which position/ projection would be best to rule out the pleural effusion?
left lateral decubitus (LLD)
For anterior oblique radiographs of the chest, the elongated (widened) aspect of the thorax is generally
farthest from the image receptor.
True
Which of the following is a condition in which all or part of a lung is collapsed, requiring an increase in
manual exposure factors?
atelectasis
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,https://www.stuvia.com/user/docstudent96 4/3/2026 https://www.stuvia.com/user/docstudent96
A correctly positioned lateral chest radiograph demonstrates some seperation of the posterior ribs due
to the divergence of the beam. But a seperation of greater than _____ cm indicates objectionable
rotation from a true lateral.
1 cm
Of the following factors, which one is most crucial to demonstrate possible air and fluid levels in the
chest?
patient in erect or decubitus position
Which of the following factors must be applied to minimize distortion of the heart?
72 inch SID
Of the following positioning actions, which one will remove the majority of the scapula from the lung
fields?
roll the shoulders forward
What is the primary disadvantage of performing an AP projection of the chest rather than a PA
projection?
increased magnification of the heart
Which of the following anatomic structures is examined to determine rotation on a PA chest
radiograph?
symmetric appearance of sternoclavicular (SC) joints
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Scoliosis and kyphosis may produce asymmetry of the sternoclavicular (SC) joints and rib cage as
demonstrated on a PA chest radiograph?
True
The left anterior oblique (LAO) position of the sternum provides the best frontal image of the sternum
with minimal distortion.
False
A right or left marker may be taped over the area of interest to indicate the location of trauma to the
ribs.
False
Which position can replace the RAO of the sternum if the patient cannot lie prone?
LPO
What is the recommended SID for the lateral sternum position?
60 to 72 inches
The two routine positions used to demonstrate the sternum are:
RAO and lateral
What degree of rotation is used for a routine RAO position of the sternum?
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