Hand Radiographic Positions Quiz
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Questions and Answers

What is the correct central ray (CR) orientation for the hand in the lateromedial projection during extension and flexion?

  • CR perpendicular to the image receptor, directed to the second to fifth MCP joint (correct)
  • CR directed to the first MCP joint
  • CR angled 20 degrees towards the elbow
  • CR parallel to the film, directed at the wrist

    • Which statement is true regarding the PA projection of the hand?

  • The projection includes only one hand with the arm extended.
  • The CR should be angled downward to focus on the phalanges.
  • The PA projection should not include any markers.
  • Both hands should be positioned to demonstrate the MCP joints. (correct)

    • In the context of lateral projections of the hand, what does 'lateral in extension' refer to?

  • The hand is positioned with fingers flexed towards the palm.
  • The hand is placed flat against the imaging plate.
  • The fingers are extended straight while keeping the hand lateral. (correct)
  • The arm is bent at the elbow to achieve a different angle.

    • Which joint is the central ray positioned towards for the lateral projections of the hand?

    <p>Second to fifth MCP joint</p> Signup and view all the answers

    What is the primary purpose of using a lateral view in flexion during hand imaging?

    <p>To assess joint space between the MCP joints.</p> Signup and view all the answers

    Which radiographic position is specifically used to visualize the carpal canal?

    <p>Special projection for carpal canal</p> Signup and view all the answers

    What is the primary purpose of orthoroentgenography?

    <p>To measure limb lengths for leg length discrepancy</p> Signup and view all the answers

    Which joint is visualized with a specialized radiographic position called the 'AP of the AC joint'?

    <p>Acromioclavicular (AC) joint</p> Signup and view all the answers

    What structure is NOT included in the lower extremity radiographic positions?

    <p>Carpal canal</p> Signup and view all the answers

    Which series is typically performed to view multiple bones in a single assessment?

    <p>Bone survey series</p> Signup and view all the answers

    What is the orientation of the central ray (CR) in the described projection?

    <p>Perpendicular to the second MCP joint</p> Signup and view all the answers

    Which of the following correctly describes the position of the hand during the lateral projection?

    <p>Hand in full extension with fingers spread</p> Signup and view all the answers

    In lateral projections of the hand, which area is critical to ensure clarity?

    <p>Correct angulation of the CR</p> Signup and view all the answers

    What should be avoided when performing a lateral hand projection?

    <p>Having more than one finger overlapping</p> Signup and view all the answers

    Which anatomical landmark is targeted in a lateral hand projection?

    <p>2nd MCP joint</p> Signup and view all the answers

    What does 'fan beam' refer to in the context of radiographic positioning?

    <p>A specific type of x-ray beam designed for broader exposure</p> Signup and view all the answers

    What should the position of the fingers be during the lateral projection of the hand?

    <p>Extended and parallel to each other</p> Signup and view all the answers

    Which of the following factors influences the quality of the lateral hand projection?

    <p>Collimation of the x-ray beam</p> Signup and view all the answers

    Study Notes

    Hand Radiographic Positions

    • Routine Hand Radiographs: Include PA and lateral projections.
    • Lateral Hand Projection: Position the patient's hand with the palm facing up. CR (central ray) is perpendicular to the IR (image receptor) and directed toward the second MCP (metacarpophalangeal) joint.
    • Lateral Hand Projection (Extension and Flexion): Patient's hand is in extension and flexion. CR perpendicular to the IR, directed toward the second to fifth MCP joints.
    • PA Hand Projection (Both Hands): Place the patient's hands on the IR with palms facing down. CR is perpendicular to the IR.

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    Description

    Test your knowledge on routine hand radiographs and their specific positions. This quiz covers lateral and PA projections along with the correct central ray directions. Perfect for radiography students and professionals alike.

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