Podcast
Questions and Answers
What is the correct central ray (CR) orientation for the hand in the lateromedial projection during extension and flexion?
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?
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?
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?
Which joint is the central ray positioned towards for the lateral projections of the hand?
What is the primary purpose of using a lateral view in flexion during hand imaging?
What is the primary purpose of using a lateral view in flexion during hand imaging?
Which radiographic position is specifically used to visualize the carpal canal?
Which radiographic position is specifically used to visualize the carpal canal?
What is the primary purpose of orthoroentgenography?
What is the primary purpose of orthoroentgenography?
Which joint is visualized with a specialized radiographic position called the 'AP of the AC joint'?
Which joint is visualized with a specialized radiographic position called the 'AP of the AC joint'?
What structure is NOT included in the lower extremity radiographic positions?
What structure is NOT included in the lower extremity radiographic positions?
Which series is typically performed to view multiple bones in a single assessment?
Which series is typically performed to view multiple bones in a single assessment?
What is the orientation of the central ray (CR) in the described projection?
What is the orientation of the central ray (CR) in the described projection?
Which of the following correctly describes the position of the hand during the lateral projection?
Which of the following correctly describes the position of the hand during the lateral projection?
In lateral projections of the hand, which area is critical to ensure clarity?
In lateral projections of the hand, which area is critical to ensure clarity?
What should be avoided when performing a lateral hand projection?
What should be avoided when performing a lateral hand projection?
Which anatomical landmark is targeted in a lateral hand projection?
Which anatomical landmark is targeted in a lateral hand projection?
What does 'fan beam' refer to in the context of radiographic positioning?
What does 'fan beam' refer to in the context of radiographic positioning?
What should the position of the fingers be during the lateral projection of the hand?
What should the position of the fingers be during the lateral projection of the hand?
Which of the following factors influences the quality of the lateral hand projection?
Which of the following factors influences the quality of the lateral hand projection?
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.
