Heart penetration on an AP chest projection
1. is obtained by increasing the kVp.
2. results in a lower contrast image.
3. is required when apparatuses located at the mediastinal region are of interest.
4. results in a decrease in scatter radiation reaching the IR.
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 only
d. 1, 2, 3, and 4
B
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