ARRT questions with correct answers

Which of the following bones are in the hindfoot portion of the foot? CORRECT ANSWER Calcaneus and talus When the ankle is flexed to raise the foot, the movement is termed CORRECT ANSWER dorsiflexion When the leg is extended in the supine position, the ankle is maximally dorsiflexed and the central ray is directed 40 degrees cephalad through the plantar surface of the foot, the resulting image demonstrates what projection? CORRECT ANSWER an axial projection of the calcaneus where should the IR enter for AP of the knee? CORRECT ANSWER 1/2 inch below apex of the patella When the lateral projection of the knee is taken, flexion of the knee joint should be limited to 10 degrees when there is suspicion of: CORRECT ANSWER a fracture of the patella What change in technical factors is required when an ankle in a dry plaster cast must be radiographed? CORRECT ANSWER increase mAs by 2 times What is the center point of the CR for the PA projection of the hand CORRECT ANSWER 3rd metacarpophalangeal joint