A radiologist wants an oblique projection that will demonstrate the maximum area of the
right lung. Which of the following chest projections will best demonstrate the maximum area
of the right lung? correct answers AP oblique projection, RPO position
A patient comes to Radiology with a possible right pneumothorax. She is unable to stand.
Which of the following chest projections would be ideal in demonstrating this condition?
correct answers AP projection, left lateral decubitus position
Which region of the lungs is best demonstrated with the AP axial projection? correct answers
Pulmonary apices
Where is the central ray centered for an AP supine projection of the chest? correct answers 3
inches (7.6 cm) below the jugular notch
Which two oblique positions will elongate the left lung? correct answers LPO and RAO
Where is the central ray centered for the AP axial projection of the pulmonary apices? correct
answers T2
The lateral projection of the trachea may be used to demonstrate:
(1) The thymus gland
(2) The middle compartment of the mediastinum
(3) Foreign bodies correct answers 1 and 3 only
Which of the following anatomic structures is examined radiographically to detect rotation on
the lateral chest projection? correct answers Posterior ribs
All of the following projections would demonstrate the air/fluid level in the lungs except for
the: correct answers Supine AP
Which of the following positioning maneuvers are used to prevent distortion and rotation in
the lateral projection of the chest?
(1) MCP placed perpendicular to the IR
(2) Instructing patient to distribute weight equally on both feet when standing upright
(3) MSP placed parallel to the IR correct answers 1, 2, and 3
Which of the following positions would be best to demonstrate fluid in the left lung of a
seriously ill patient? correct answers Left lateral decubitus
What is the proper patient position for the AP oblique projection of the chest to demonstrate
the right lung? correct answers 45-degree right posterior oblique (RPO)
Which of the following statements regarding the rationale for use of the upright position for
chest radiography is true? correct answers The upright position prevents engorgement of the
pulmonary vessels.
All of the following actions are required for the PA projection of the chest except: correct
answers Positioning the midcoronal plane (MCP) perpendicular to the image receptor