Image Analysis Chapter 3 Questions and
Answers
1. For a PA chest projection with accurate positioning, the
1. SID is set at 72 inches (183 cm).
2. shoulders are positioned at equal distances from the IR.
3. upper midcoronal plane is tilted slightly toward the IR.
4. elbows and shoulders are rotated posteriorly.
a. 1 and 2 only
b. 2 and 3 only
c. 1, 2, and 4 only
d. 1, 2, 3, and 4 - ANS-A
P. 77 | P. 88
2. A PA chest projection with accurate positioning demonstrates
1. 10 or 11 posterior ribs above the diaphragm.
2. equal posterior rib length on both sides of the chest.
3. the manubrium superimposed by the fourth thoracic vertebra.
4. the scapulae outside the lung field.
a. 1, 2, and 4 only
b. 2 and 4 only
c. 1 and 3 only
d. 1, 2, 3, and 4 - ANS-D
P. 88
3. The IR is positioned ____ for a PA chest projection of a hypersthenic patient.
a. crosswise
b. lengthwise - ANS-A
PP. 85-86
4. A PA chest projection obtained on expiration demonstrates
1. a narrower and longer heart shadow.
2. an underexposed image if exposure is not increased when a manual technique is
used.
3. a broader and shorter heart shadow.
4. fewer than 10 posterior ribs above the diaphragm.
a. 1 and 2 only
b. 1, 2, and 4 only
c. 3 and 4 only
d. 2, 3, and 4 only - ANS-D
P. 90
, 5. On inhalation, the lungs expand
1. vertically.
2. transversely.
3. anteroposteriorly.
a. 1 only
b. 2 and 3 only
c. 1 and 2 only
d. 1, 2, and 3 - ANS-D
P. 90
6. A PA chest projection obtained with the patient rotated into an RAO position
demonstrates
1. 1 inch (2.5 cm) of the apical lung field above the clavicles.
2. the vertebral column superimposed over the left sternoclavicular (SC) joint.
3. elevated lateral clavicular ends.
4. the left posterior ribs with greater length than the right posterior ribs.
a. 2 only
b. 1, 2, and 4 only
c. 3 only
d. 1 and 4 only - ANS-D
PP. 85-86
7. A PA chest projection with poor positioning demonstrates vertical clavicles and
the manubrium at the same level as the fifth thoracic vertebra. How was the
patient positioned for such an image to be obtained?
a. The shoulders and elbows were not internally rotated.
b. The shoulders were elevated.
c. The patient's upper midcoronal plane was tilted toward the IR.
d. The central ray was angled caudally. - ANS-C
P. 87
8. A PA chest projection with poor positioning demonstrates the scapulae in the
lung field and elevated lateral clavicular ends. How should the patient be
repositioned for an optimal projection to be obtained?
1. Tilt the upper midcoronal plane away from the IR.
2. Depress the shoulders.
3. Coax the patient into a deeper inspiration.
4. Anteriorly rotate the shoulders and elbows.
a. 1 and 4 only
b. 2 only
c. 2, 3, and 4 only
d. 2 and 4 only - ANS-D
P. 87
, 9. For a left lateral chest projection with accurate positioning, the
1. SID is set at 40 inches (102 cm).
2. humeri are positioned vertically.
3. shoulders, posterior ribs, and posterior pelvic wings are aligned perpendicular to
the image receptor (IR).
4. midsagittal plane is aligned perpendicular to the IR.
a. 1 and 3 only
b. 2 and 4 only
c. 2 and 3 only
d. 3 and 4 only - ANS-C
P. 92
10. A left lateral chest projection with accurate positioning demonstrates
1. no humeral soft tissue in the lung field.
2. no more than a total of 0.5 inch (1 cm) of space between the posterior or
anterior ribs.
3. the right hemidiaphragm inferior to the left hemidiaphragm.
4. the hemidiaphragms inferior to the eleventh thoracic vertebra.
a. 1, 2, and 4 only
b. 1 and 2 only
c. 3 and 4 only
d. 2 and 3 only - ANS-A
P. 92
11. The last rib is attached to the ____ vertebra.
a. eleventh
b. tenth
c. twelfth
d. ninth - ANS-C
P. 97
12. Which of the following pertains to a lateral chest projection with accurate
positioning that was obtained with the right side positioned adjacent to the IR?
1. The heart shadow demonstrates increased magnification over a left lateral
projection.
2. The left lung demonstrates the sharpest recorded details.
3. The left hemidiaphragm is demonstrated inferior to the right hemidiaphragm.
4. One and one-half inches (4 cm) of space separates the posterior and anterior
ribs.
a. 1 only
b. 1 and 3 only
c. 1, 2, and 3 only
d. 2 and 4 only - ANS-B
PP. 94-95
Answers
1. For a PA chest projection with accurate positioning, the
1. SID is set at 72 inches (183 cm).
2. shoulders are positioned at equal distances from the IR.
3. upper midcoronal plane is tilted slightly toward the IR.
4. elbows and shoulders are rotated posteriorly.
a. 1 and 2 only
b. 2 and 3 only
c. 1, 2, and 4 only
d. 1, 2, 3, and 4 - ANS-A
P. 77 | P. 88
2. A PA chest projection with accurate positioning demonstrates
1. 10 or 11 posterior ribs above the diaphragm.
2. equal posterior rib length on both sides of the chest.
3. the manubrium superimposed by the fourth thoracic vertebra.
4. the scapulae outside the lung field.
a. 1, 2, and 4 only
b. 2 and 4 only
c. 1 and 3 only
d. 1, 2, 3, and 4 - ANS-D
P. 88
3. The IR is positioned ____ for a PA chest projection of a hypersthenic patient.
a. crosswise
b. lengthwise - ANS-A
PP. 85-86
4. A PA chest projection obtained on expiration demonstrates
1. a narrower and longer heart shadow.
2. an underexposed image if exposure is not increased when a manual technique is
used.
3. a broader and shorter heart shadow.
4. fewer than 10 posterior ribs above the diaphragm.
a. 1 and 2 only
b. 1, 2, and 4 only
c. 3 and 4 only
d. 2, 3, and 4 only - ANS-D
P. 90
, 5. On inhalation, the lungs expand
1. vertically.
2. transversely.
3. anteroposteriorly.
a. 1 only
b. 2 and 3 only
c. 1 and 2 only
d. 1, 2, and 3 - ANS-D
P. 90
6. A PA chest projection obtained with the patient rotated into an RAO position
demonstrates
1. 1 inch (2.5 cm) of the apical lung field above the clavicles.
2. the vertebral column superimposed over the left sternoclavicular (SC) joint.
3. elevated lateral clavicular ends.
4. the left posterior ribs with greater length than the right posterior ribs.
a. 2 only
b. 1, 2, and 4 only
c. 3 only
d. 1 and 4 only - ANS-D
PP. 85-86
7. A PA chest projection with poor positioning demonstrates vertical clavicles and
the manubrium at the same level as the fifth thoracic vertebra. How was the
patient positioned for such an image to be obtained?
a. The shoulders and elbows were not internally rotated.
b. The shoulders were elevated.
c. The patient's upper midcoronal plane was tilted toward the IR.
d. The central ray was angled caudally. - ANS-C
P. 87
8. A PA chest projection with poor positioning demonstrates the scapulae in the
lung field and elevated lateral clavicular ends. How should the patient be
repositioned for an optimal projection to be obtained?
1. Tilt the upper midcoronal plane away from the IR.
2. Depress the shoulders.
3. Coax the patient into a deeper inspiration.
4. Anteriorly rotate the shoulders and elbows.
a. 1 and 4 only
b. 2 only
c. 2, 3, and 4 only
d. 2 and 4 only - ANS-D
P. 87
, 9. For a left lateral chest projection with accurate positioning, the
1. SID is set at 40 inches (102 cm).
2. humeri are positioned vertically.
3. shoulders, posterior ribs, and posterior pelvic wings are aligned perpendicular to
the image receptor (IR).
4. midsagittal plane is aligned perpendicular to the IR.
a. 1 and 3 only
b. 2 and 4 only
c. 2 and 3 only
d. 3 and 4 only - ANS-C
P. 92
10. A left lateral chest projection with accurate positioning demonstrates
1. no humeral soft tissue in the lung field.
2. no more than a total of 0.5 inch (1 cm) of space between the posterior or
anterior ribs.
3. the right hemidiaphragm inferior to the left hemidiaphragm.
4. the hemidiaphragms inferior to the eleventh thoracic vertebra.
a. 1, 2, and 4 only
b. 1 and 2 only
c. 3 and 4 only
d. 2 and 3 only - ANS-A
P. 92
11. The last rib is attached to the ____ vertebra.
a. eleventh
b. tenth
c. twelfth
d. ninth - ANS-C
P. 97
12. Which of the following pertains to a lateral chest projection with accurate
positioning that was obtained with the right side positioned adjacent to the IR?
1. The heart shadow demonstrates increased magnification over a left lateral
projection.
2. The left lung demonstrates the sharpest recorded details.
3. The left hemidiaphragm is demonstrated inferior to the right hemidiaphragm.
4. One and one-half inches (4 cm) of space separates the posterior and anterior
ribs.
a. 1 only
b. 1 and 3 only
c. 1, 2, and 3 only
d. 2 and 4 only - ANS-B
PP. 94-95
