round two – lightning round round two consists of 30 questions each individual team will read the...
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Round Two – Lightning Round• Round two consists of 30 questions
• Each individual team will read the questions and possible answers as they appear on the screen. No moderators and no individual team judges will preside in round two.
• A team member will record the team’s selection of an answer on the round two score sheet.
• The length of time the question/answer which appears will vary, depending on the length of the question and possible answer. A countdown timer will appear on the screen that has been calculated and adjusted according to the question/answer length.
• Slides will not be reviewed or repeated until the end of the round two, after all of the4 teams have remitted their answer sheets to the Master Judges.
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1.Which of the following would not affect the patient dose?
• a. focal spot size
• b. mAs
• c. kVp
• d. filtration
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2.What projection/position of the elbow best demonstrates the olecranon process?
• a. lateral
• b. AP
• c. medial oblique
• d. lateral oblique
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3. What is the normal rotational speed of the anode in the general purpose x-ray tube?
• a. 1,000 - 2,000 rpm
• b. 300 - 400 rpm
• c. 3,000 – 4,000 rpm
• d. 10,000 – 20,000 rpm
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4. Which of the following intensifying screen relative speeds would produce the highest patient dose?
• a. 40
• b. 100
• c. 200
• d. 400
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5. At what temperature does an x-ray tube filament exhibit significant thermionic emission?
• a. 400 º C
• b. 4,000 º C
• c. 2,200 º C
• d. 7,000 º C
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6. What term describes the number of electrons in the outermost shell of an atom?
• a. Z - number
• b. atomic mass
• c. valence
• d. ionization
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7. Which formula solves for voltage?
• a. V= I/R
• b. V= I x R
• c. V = I x V
• d. V = R/I
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8. Approximately how much should the knee be flexed for lateral projection?
• a. 5 º
• b. 15 º
• c. 25 º
• d. 55 º
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9. What is the proper position of hand for an AP elbow?
• a. pronated
• b. supinated
• c. lateral
• d. lateral (external) oblique
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10. What is the largest foramina in the body?
• a. foramen magnum
• b. obturator foramen
• c. foramen ovale
• d. foramen spinosum
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11. Which of the following structures is enclosed within a diagnostic x-ray tube cathode assembly focusing cup?
• a. focal track
• b. filament
• c. rotor
• d. stator
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12. Which of the following filtrations would result in the highest entrance skin exposure to a patient?
• a. 0.5 mm Al
• b. 1.5 mm Al
• c. 2.5 mm Al
• d. 4.5 mm Al
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13. Who can diagnose from a radiograph?
• a. radiographer
• b. nurse
• c. doctor
• d. all of the above
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14. Which of the following is the primary concern during respiratory isolation procedures?
• a. blood
• b. feces
• c. airborne droplets
• d. semen
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15. Which bone/s form acetabulum?
• a. ilium
• b. ischium
• c. pubis
• d. all of the above
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16. Which of the following will decrease artifact caused by patient motion?
• a. increased time
• b. increased mA
• c. decreased kVp
• d. increased OID
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17. Which of the following substances is the LEAST dense?
• a. fat
• b. muscle
• c. cartilage
• d. bone
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18. Which of the following radiation types is the most penetrating in the soft tissue?
• a. alpha
• b. beta minus
• c. beta plus
• d. gamma
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19. Which of the following affects the average energy of the x-ray beam?
• a. mA
• b. time
• c. mAs
• d. kVp
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20. What term describes the electron ejected from an atom during Compton interaction?
• a. photoelectron
• b. auger electron
• c. recoil electron
• d. cascade
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21. Which of the following would increase the recorded detail?
• a. increased FSS
• b. increased OID
• c. decreased SID
• d. increased SID
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22. In what position is the patient when the x-ray table is inclined with the patient’s head slightly lower than the body?
• a. Fowler’s
• b. Sim’s
• c. decubitus
• d. trandelenburg
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23. Which of the following articulates with the superior facet of the os calcis?
• a. cuboid
• b. navicular
• c. astragalus
• d. third cuneiform
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24. Which of the following affects the average energy of the x-ray beam?
• a. mA
• b. time
• c. filament temperature
• d. kVp
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25. Which of the following units represents radiation exposure as measured in air?
• a. rem
• b. rad
• c. gray
• d. roentgen
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26. What is the most acceptable period for reporting film badge reports?
• a. daily
• b. weekly
• c. monthly
• d. semi-annualy
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27. Which of the following has the greatest effect on the recorded detail?
• a. mAs
• b. kVp
• c. anode target angle
• d. FSS
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28. Where is an apical pulse taken?
• a. over the heart
• b. at the foot (dorsalis pedis)
• c. over the carotid artery
• d. at the popliteal area
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29. Which of the following forms the medial end of the clavicle?
• a. acromion process
• b. ac joint
• c. coronoid process
• d. sternoclavicular joint
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30. What condition/s would cause static discharge artifact on a film?
• a. high humidity
• b. low humidity
• c. high temperature
• d. low temperature