LRA 220 Final Exam V3| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A

LRA 220 Final Exam V3| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A Q: Which special position of the knee requires that the patient be placed supine with 40° flexion of the knee and the CR angled 30° from the long axis of the femur? Answer: Bilateral merchant method Q: A radiograph of an AP ankle projection reveals that the lateral joint space is not open (lateral malleolus is partially superimposed by the talus). The superior and medial joint spaces are open. What should the technologist do to correct this problem and improve the image? Answer: Nothing, this is an acceptable image. Q: A radiograph of an AP medial oblique projection of the foot, if positioned correctly, should demonstrate Answer: Third through fifth metatarsals free of superimpo- sition Q: The purpose of the AP stress views of the ankle is to demonstrate Answer: Possible joint separations or ligament tears Q: Which of the following routines should be performed for a study of the second toe? Answer: AP, AP oblique with medial rotation, lateromedial projection Q: A correctly positioned lateral ankle will demonstrate the lateral malleolus superimposed over the posterior half of the tibia. T /F Answer: True Q: Which of the following projections of the ankle will best demonstrate the open joint space of the lateral aspect of the ankle joint? Answer: AP mortise projection Q: The foot must be force dorsiflexed so that the long axis of the foot is perpendicular to the image receptor for AP and mortise projections of the ankle. T/F Answer: False Q: How much is the foot dorsiflexed with the tangential projection for the sesamoid bones if the CR remains perpendicular to the image receptor? Answer: