Lra 221 - Study guides, Class notes & Summaries

LRA 222 Week 1 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: Similar to CR, DR can use the existing diagnostic equipment found in today's imaging departments A. True B. False Answer: B. False Q: Indirect capture DR converts absorbed x-ray energy into visible light A. True B. False Answer: A. True Q: DICOM is a standard that allows imaging modalities and PACS to communicate in the same language A. True B. False Answer: A. ...

LRA 222 Week 3 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: To overcome the decrease in sharpness caused by the air gap technique, an increase in SID is required A. True B. False Answer: A. True Q: Grid cutoff results in A. may increased patient exposure B. all of these C. reduced exposure to the IR D. possible increased in quantum noise Answer: B. all of these Q: The unrestricted primary x-ray beam is A. round B. rectangul...

LRA 222 Final Exam| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A Q: A diode allows electrons to flow from _____. Answer: cathode to anode Q: True or False? The mAs timer is usually set to give the lowest mA at the longest time? Answer: False Q: What is amplitude? Answer: Height of a wave Q: Variations in power distribution to the xray machine are corrected by the _____. Answer: Line voltage Q: What is the most ...

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 space...

LRA 220 Final Exam V2| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A Q: What size IR is use for calcaneus Answer: 8 by 10 Q: What projections are use for calcaneus views? Answer: Axial and lateral Q: What angel is used for axial calcaneus view? Answer: 40 degrees toward the head Q: What is the central ray for a lateral view of the calcaneus? Answer: 1 inch distal to medial malleolus Q: What projections ar...

LRA 220 Final Exam V1| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A Q: This radiograph represents which of the following positions? Answer: Medial lateral of the knee toward the IR Q: To decrease the angle between the anterior surface of the foot and anterior surface of the lower leg is described as: Answer: Dorsiflexion Q: How much central ray (CR) angulation (if any) should be used for an AP projection of the toes? Answer: ...

When communication has been validated, this means that the speaker has: - Answer received a response from the listener that demonstrates comprehension. Belief in the ancient superstition of the mal ojo, or "evil eye," is most likely to be encountered in individuals whose ethnic background is: - Answer Hispanic. An electrolarynx is a device that assists communication for some who have: - Answer inability to speak normally.

About half of the population will experience skin erythema following a localized dose of ____Gy - Answer 5 The central nervous system syndrome occurs following a whole body dose of ____Gy - Answer 50 A single chromosome aberration represents_____to the DNA within the chromosome - Answer severe damage

Which sinus often produces an air/fluid level indicating a basilar skull fracture? - Answer sphenoid All of the sinuses inner communicate with each other, and with the nasal cavity - Answer True The _____ passageway drains, the maxillary sinus into the middle nasal conchae - Answer infundibulum The _____ sinuses develop blast and are not fully developed until the teenage years - Answer Ethmoid

belts during an auto accident involving sudden deceleration is a ( ) fracture. - Answer chance which of the following statements is true for a typical adult vertebra? - Answer the transverse processes extend laterally from the junction of the pedicles and laminae. The joints between articular processes of vertebra are termed ( ) joints. - Answer zygapophyseal Sciatic type of pain resulting from a "slipped disk" indicates: - Answer herniated nucleus pulposus