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

Question

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The Answer of 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

A PA Chest Projection Obtained on Expiration Demonstrates