image 3.33
what is wrong or missing? - CORRECT ANSWERS-The lung fields should be
seen from the apices to costophrenic angles, but they are not.
A IMAGE 3.34 - CORRECT ANSWERS-The ribs posterior to the vertebral
column should be superimposed, but those on the image are not.
B IMAGE 3.34 - CORRECT ANSWERS-No shadow of the arm or its soft tissue
should over-
lap the superior lung field, but the soft tissue shadow
of the upper arm overlies the upper lung fields.
C IMAGE 3.34 - CORRECT ANSWERS-The IR is positioned too low because the
hilum is
not seen in the approximate center of the image.
IMAGE 3.35 - CORRECT ANSWERS-
state the major positioning error that necessitates repetition of the exam -
CORRECT ANSWERS-The patient appears to be rotated because the dis-
tance from the sternal ends of the clavicle to the vertebral column is not
equal on both sides.
describe how patient positioning should be adjusted to produce a more
acceptable image with a subsequent projection - CORRECT ANSWERS-
Because the patient appears to be slightly rotated into the RPO position, the
patient's position needs to be corrected by moving the left shoulder closer to
the IR and ensuring that the patient is in the true AP projection position
without any rotation.
IMAGE 3.36
what error is evident ? - CORRECT ANSWERS-The patient has a necklace on,
which left an artifact in the imagE
image 3.37
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