ASRT Practice Exam 2025 – Complete Study Resource

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What aspect is assessed in an AP projection of the hand?

Joint space between the metacarpals

The AP (anterior-posterior) projection of the hand is primarily used to assess joint space between the metacarpals. This projection allows for a clear view of the intermetacarpal joints, which can reveal any abnormalities such as joint effusion, arthritis, or fractures that might not be as visible in other views.

The alignment of the metacarpals can also be evaluated in this projection, providing valuable information on the structural integrity and overall health of the hand. These aspects are crucial for diagnosing conditions affecting the metacarpal region and are why the assessment focuses significantly on joint spaces.

While other options touch on relevant hand anatomy, they do not specifically align with the main focus of the AP projection, which is primarily concerned with evaluating the alignment and space of the joints between the metacarpals.

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Length of the phalanges

Alignment of the carpal bones

Extent of finger dexterity

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