Bontrager Ch. 2 (chest) Test Questions
with correct expert verified detailed
Answers latest update 2025
Describe the way optimum density (brightness) of the lungs and
mediastinal structures can be determined on a PA chest radiograph ---
correct answer ---Should be able to see faint outlines of at least
middle and upper vertebrae and ribs through heart and other
mediastinal structures.
True/False: Because the heart is always located in the left thorax, the
use of anatomic side markers on a PA chest projection may not be
necessary. --- correct answer ---False (heart may be located in right
thorax)
What is another term for the condition termed visceral inversion? ---
correct answer ---Situs inversus
Which of the following devices should be used for the erect PA and
lateral chest projections for an infant?
A. Upright chest device
B. Supine table Bucky
,C. Pigg-O-Stat
D. Plexiglas restraint board --- correct answer ---C. Pigg-O-Stat
Which of the following set of exposure factors is recommended for a
chest examination of a young pediatric patient?
A. 70 to 85 kV, short exposure time
B. 90 to 100 kV, medium exposure time
C. 100 to 120 kV, short exposure time
D. 120 to 150 kV, long exposure time --- correct answer ---A. 70 to 85
kV, short exposure time
True/False: Because they have shallower (superior-inferior
dimension) lung fields, the CR is often centered higher for geriatric
patients. --- correct answer ---True
True/False: CR centering for the PA chest projection on an obese
patient is 1 to 2" lower than for a sthenic patient. --- correct answer --
-False (centering for obese patient is at the same location - T7)
To ensure better lung inspiration during chest radiography, exposure
should be made during the _________ inspiration. --- correct answer -
--second
, List four possible pathologic conditions that suggest the need for both
inspiration and expiration PA chest radiographs --- correct answer ---
A. Small pneumothorax
B. Fixation or lack of normal diaphragm movement
C. Presence of a foreign body
D. Distinguishing between opacity in rib or lung
List and explain briefly the three reasons chest radiographs should be
taken with the patient in the erect position (when the patient's
condition permits). --- correct answer ---A. To allow diaphragm to
move down farther
B. To show possible air and fluid levels in the chest
C. To prevent engorgement and hyperemia of the pulmonary vessels
Why do the lungs tend to expand more with the patient in an erect
position than in a supine position? --- correct answer ---Erect position
allows abdominal organs to drop, allowing the diaphragm to move
farther down and the lungs to aerate more fully.
with correct expert verified detailed
Answers latest update 2025
Describe the way optimum density (brightness) of the lungs and
mediastinal structures can be determined on a PA chest radiograph ---
correct answer ---Should be able to see faint outlines of at least
middle and upper vertebrae and ribs through heart and other
mediastinal structures.
True/False: Because the heart is always located in the left thorax, the
use of anatomic side markers on a PA chest projection may not be
necessary. --- correct answer ---False (heart may be located in right
thorax)
What is another term for the condition termed visceral inversion? ---
correct answer ---Situs inversus
Which of the following devices should be used for the erect PA and
lateral chest projections for an infant?
A. Upright chest device
B. Supine table Bucky
,C. Pigg-O-Stat
D. Plexiglas restraint board --- correct answer ---C. Pigg-O-Stat
Which of the following set of exposure factors is recommended for a
chest examination of a young pediatric patient?
A. 70 to 85 kV, short exposure time
B. 90 to 100 kV, medium exposure time
C. 100 to 120 kV, short exposure time
D. 120 to 150 kV, long exposure time --- correct answer ---A. 70 to 85
kV, short exposure time
True/False: Because they have shallower (superior-inferior
dimension) lung fields, the CR is often centered higher for geriatric
patients. --- correct answer ---True
True/False: CR centering for the PA chest projection on an obese
patient is 1 to 2" lower than for a sthenic patient. --- correct answer --
-False (centering for obese patient is at the same location - T7)
To ensure better lung inspiration during chest radiography, exposure
should be made during the _________ inspiration. --- correct answer -
--second
, List four possible pathologic conditions that suggest the need for both
inspiration and expiration PA chest radiographs --- correct answer ---
A. Small pneumothorax
B. Fixation or lack of normal diaphragm movement
C. Presence of a foreign body
D. Distinguishing between opacity in rib or lung
List and explain briefly the three reasons chest radiographs should be
taken with the patient in the erect position (when the patient's
condition permits). --- correct answer ---A. To allow diaphragm to
move down farther
B. To show possible air and fluid levels in the chest
C. To prevent engorgement and hyperemia of the pulmonary vessels
Why do the lungs tend to expand more with the patient in an erect
position than in a supine position? --- correct answer ---Erect position
allows abdominal organs to drop, allowing the diaphragm to move
farther down and the lungs to aerate more fully.
