LRA 218 Final Exam Questions and Answers | Latest Version | 2024/2025 | Graded A+

LRA 218 Final Exam Questions and Answers | Latest Version | 2024/2025 | Graded A+ A general positioning rule is to place the long axis of the part _______ to the long axis of the image receptor. Parallel A lateral elbow radiograph demonstrates about half of the radial head superimposed by the coronoid process of the ulna. Which of the following occurred? No positioning errors occurred A patient enters radiology with a possible Bennett's fracture. Which of the following routines should be performed to confirm the diagnosis? thumb A patient enters the department with multiple injuries including a possible fracture of the left proximal humerus. Which positioning rotation should be performed to determine the extent of the humerus injury? AP and horizontal beam transthoracic lateral shoulder projection A posterior dislocation of the shoulder occurs more frequently than an anterior dislocation. False a radiograph of a PA oblique of the hand reveals that the mindaspect of the fourth and fifth metacarpals is superimposed. What specific positioning error has been committed? Excessive rotation of the hand and/or wrist A radiograph of a PA projection of the hand reveals that the distal radius and ulna and the carpals were cut off. What should the technologist do to correct this problem? Repeat the PA projection to include all the carpals and about 1 inch of the distal radius and ulna. A radiograph of an AP axial projection of the clavicle demonstrates that the clavicle is within the mid-aspect of the lung apices. What should the technologist do to correct this error? Increase the cephalic CR angle during repeat exposure A radiograph of the elbow demonstrates the radius directly superimposed over the ulna and the coronoid process in profile. Which projection of the elbow has been performed? Medial rotation oblique A radiograph of the inferosuperior axial projection (Lawrence method) demonstrates the acromion process of the shoulder to be located most superiorly (anteriorly). False (6) A referring physician suspects that a subacromial spur may be the cause for a patient's arm numbness. She asks the technologist for a projection that would best demonstrate any possible spurs. Which of the following projections would accomplish this objective? PA scapular Y lateral with 10o to 15o caudal angle For AC joint weight-bearing studies, patients should not be asked to hold on to the weights with their hands; rather, the weights should be attached to