Lra 221 Study guides, Class notes & Summaries
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LRA 222 Final Exam| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct | Grade A
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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 ...
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LRA 220 Final Exam V3| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A
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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...
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LRA 220 Final Exam V2| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A
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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...
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LRA 220 Final Exam V1| Questions and Verified Answers - (2024/ 2025 Update) 100% Correct| Grade A
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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: 
...
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LRA 212 Final Study Guide with 100% Correct Solutions
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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.
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LRA 215 Final Exam with 100% Correct Solutions
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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
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LRA 225 & 226 Quizzes and 100% Correct Solutions
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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
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LRA 223 Exam with 100% Correct Solutions
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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
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LRA 224 Exam with 100% Correct Solutions
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T2-T3 intervetrebal disk space is found at the level of the: - Answer jugular notch 
The zygapophyseal joints for the thoracic spine lie at an angle of ( ) in relation to 
the midsagittal plane - Answer 70 degrees to 75 degrees 
The anterior oblique thoracic spine demonstrates the upside zygapophyseal 
joints. - Answer False
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LRA 216 Final Quiz with 100% Correct Solutions
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The bucky slot opening in the side of the table must be automatically covered with _____ mm 
Pb during fluoroscopy. - Answer 0.25 
The leakage radiation limit for x-ray tubes is less than____mGy/hr at 1 meter from the tube 
housing - Answer 1 
A secondary barrier is designed to absorb____ radiation - Answer leakage 
Scatter
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