Lra 220 - Study guides, Class notes & Summaries

LRA 220: Positioning of Lower Limb Exam 2024/2025 Questions With Completed & Verified Solutions.

How much central ray (CR) angulation (if any) should be used for an AP projection of the toes? - correct answer 10° to 15° toward calcaneus T/F A correctly positioned AP 45° medial oblique ankle projection frequently may also demonstrate a fracture of the base of the fifth metatarsal if present. - correct answer True Which of the following projections of the ankle will best demonstrate the open joint space of the lateral aspect of the ...

LRA 220 WEEK 1 QUESTIONS AND ANSWERS | LATEST UPDATE | 2024/2025 | GRADED A+ A correctly positioned AP 45° medial oblique ankle projection frequently may also demonstrate a fracture of the base of the fifth metatarsal if present. TRUE or FALSE TRUE A correctly positioned lateral ankle will demonstrate the lateral malleolus superimposed over the posterior half of the tibia. TRUE or FALSE TRUE A radiograph of a AP mortise projection of the ankle reveals that the lateral malleolus is ...

LRA 220 Quiz 2 (Study Set) Exam 2024/2025 Questions With Completed & Verified Solutions.

How much central ray (CR) angulation should be used for an AP projection of the toes? - correct answer 10 to 15 towards calcaneus How much is the foot dorsiflexed with the tangential projection for the sesamoid bones if the CR remains perpendicular to the image receptor? - correct answer 15 to 20 from vertical A correctly positioned AP 45 medial oblique ankle projection frequently may also demonstrate a fracture of the fifth metatarsal if...

LRA 221 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Q: Which of the following statements about scintillators is true? a. all scintillators absorb the same amount of x-ray photons b. the amount of x-rays absorbed depends on the type of scintillator c. structured phosphors produce more light spread d. unstructured phosphors are more efficient Answer: the amount of x-rays absorbed depends on the type of scintillator Q: The readout process requires that ...

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 221 Week 2 Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Q: The optical mirror in the reader A. directs the laser beam to the imaging plate surface B. forms the laser beam into a circle C. causes the laser beam to diverge D. creates the laser beam Answer: A. directs the laser beam to the imaging plate surface Q: Typical cassette throughput is _____ cassettes per _____ A. 5; minute B. 25; minute C. 25; hour D. 50; hour Answer: D. 50; hour ...