The heart shadow on a chest radiograph will show up larger than normal on a(n):
a. AP film.
b. PA film.
c. left lateral film.
d. computed tomography (CT) scan.
A
With an AP projection, the heart is enlarged because the x-rays enter from the front and exit from the back to the film (see Fig. 7-3). A PA and left lateral film will show the heart at the correct size. The same is true of a CT scan.
Health Professions
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