17 Questions
What is the recommended patient position for the AP forearm projection?
Seated at the end of the table, facing RT(R)
Where should the marker be placed for the AP forearm projection?
At the wrist
Which error should be avoided in positioning for the AP forearm projection to demonstrate the radius and ulnar shafts clearly?
Extending the arm and keeping the hand pronated
What anatomy does the AP forearm projection include?
Entire radius and ulna, proximal carpal, elbow, and distal humerus
What is the recommended CR position for the AP forearm projection?
Perpendicular to part
What is the general part position for the AP forearm projection?
Supinate hand and fully extend arm
In which patient position is the entire upper limb positioned to be in the same plane for the AP forearm projection?
Seated at the end of the table, facing RT(R)
What does extending the arm and keeping the hand pronated lead to in the AP Forearm projection?
Superimposition of radius and ulnar shafts
What is the correct position for the upper limb in the lateral forearm projection?
Flexed to a 90 degree angle
In the lateral forearm projection, where should the humeral epicondyles and wrist be positioned?
In a true lateral position
What should be superimposed in the lateral forearm projection?
Radial and ulnar styloid
Where should the CR enter for the lateral forearm projection?
At mid-forearm
What is included in the collimation for the lateral forearm projection?
Entire radius and ulna
Which alternative/special projection can be used in the case of wrist trauma when the patient is unable to supinate or fully extend their arm?
Lateral Trauma Protocol – 2 views PA “As Is” projection – when patient is unable to supinate or fully extend arm due to injury X-table
Which anatomical structure should be superimposed over the radius in the lateral forearm projection?
Head of ulna
What is essential for optimal density and contrast in the lateral forearm projection?
Soft tissue contrast
What is required for an X-table lateral trauma protocol in addition to the patient being unable to supinate or fully extend their arm?
Patient must have an injured shoulder
Test your knowledge of forearm positioning essential projections, including AP and lateral views, clinical indications for fractures, dislocations, osteoarthritis, and osteomyelitis. This quiz also covers general positioning guidelines for patients and the central ray.
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