How is a patient positioned for a PA wrist projection to superimpose the anterior and posterior margins of the distal radius and obtain open radioscaphoid and radiolunate joint spaces?
a. Align the third metacarpal with the forearm.
b. Ulnar-flex the wrist.
c. Depress the proximal forearm.
d. Flex the hand until the metacarpals are at a 10- to 15-degree angle with the IR.
C
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Fill in the blank(s) with the appropriate word(s).
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