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
D
Health Professions
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Indicate whether the statement is true or false
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