TEST BANK FOR Bushong’s Radiologic Science for Technologists: Physics, Biology, and Protection 13th Edition by Stewart C. Bushong ISBN:978-0323930741 COMPLETE GUIDE All CHAPTERS COVERED 100% VERIFIED A+ GRADE ASSURED!!!!! NEW LATEST UPDATE!!!

,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE j l jl j l jl j l




1. Whichof the following best describes the primary purpose of diagnostic radjl jl jl jl jl jl jl jl jl jl jl




iography?
A. Totreatdiseasesusingionizing radiation
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B. Toproduceimages ofinternal structures fordiagnosis
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C. Tomonitorpatient vital signsjl jl jl jl




D. Tosterilize medical equipmentjl j l jl




Answer: B jl




Rationale:Diagnosticradiography’smain purposeis toproduceimages ofinternal bod jl jl jl jl jl jl jl jl jl jl jl




ystructures,allowing physicians todetectand diagnose abnormalities. Options A, C, a
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nd D are unrelated to diagnostic imaging.
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2. Whatisthe primary sourceofionizing radiation in medicalimaging?
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A. MRI scanner jl




B. X-ray tube jl




C. Ultrasound transducer jl




D. PET scanner jl




Answer: B jl




Rationale:TheX- jl jl




ray tubegenerates ionizing radiation usedin diagnostic radiography. MRIandultra
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sound usenon- jl jl




ionizing energy, while PETuses radioactive tracers rather than producingradiation
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in a tube.jl jl




3. HowdoestheALARA principle guide radiologicpractice?
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A. Maximizing image quality regardless ofdose jl jl jl jl jl




B. Minimizing radiation exposurewhile achieving diagnostic quality jl jl jl jl jl jl




C. Limiting patient interaction toreduceinfection jl jl jl jl jl




D. Increasingexposuretime forbetterpenetration jl jl jl jl jl




Answer: B jl




Rationale:ALARA (“As LowAs Reasonably Achievable”) ensures patient and staf jl jl jl jl jl jl j l jl jl jl




freceivethe minimum radiation dosenecessaryfordiagnostic-quality images.
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,4. A radiologic technologistis preparing to image a patient with a suspected fra
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cture. Which safety measure is most important?
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A. Usingthefastestimaging speed jl jl jl jl




B. Ensuring properpatient shielding andpositioning jl jl jl jl jl




C. Increasingexposureto reducerepeat images jl jl jl jl jl




D. Allowing thepatient tomoveduring imaging jl jl jl jl jl jl




Answer: B jl




Rationale:Propershielding and positioning minimize unnecessaryexposureand prote
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ct radiosensitive tissues. Options A, C,and D can increase radiation risk or degrade im
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age quality. jl




5. Scenario:A 45-year- jl jl




old patient expresses concernaboutradiation exposure. How should the technolog
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ist respond?
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A. Ignoretheir concerns;radiation is safe jl jl jl jl jl




B. Explain thatdoseis minimized andbenefits outweigh risks
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C. Refuseto performthe exam jl jl jl jl




D. Increaseexposureto ensure better images jl jl jl jl jl




Answer: B jl




Rationale:Patients should beinformed about the low doseand the diagnostic benefits
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, reducing anxiety and promoting informed consent.
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6. Which professional organizationestablishes standards for radiologic te
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chnologists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B jl




Rationale: The American Society of Radiologic Technologists (ASRT) sets education
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al and professionalstandards.FDA regulates equipment, CDC focuseson infection contr
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ol, WHO on global health.
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, 7. Whichimaging modality doesnot use ionizing radiation?
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A. CTscan jl




B. MRI
C. X-ray
D. Fluoroscopy
Answer: B jl




Rationale:MRIusesmagnetic fields andradio waves, which arenon-ionizing. CT,X-
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ray, and fluoroscopyall use ionizing radiation.
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8. Whatis the mostradiosensitivetissuein the human body?
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A. Muscle
B. Skin
C. Bone marrow jl




D. Cartilage
Answer: C jl




Rationale:Bonemarrowcontainsrapidly dividing cells,making it highly sensitive to io
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nizing radiation. Muscle, skin, and cartilage are less sensitive.
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9. Whichfactorprimarily affects the quality ofanX-ray image?
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A. Patient diet jl




B. Tubevoltage and current
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C. Roomtemperature jl




D. Technologist height jl




Answer: B jl




Rationale:Tubevoltage (kVp) and current (mA) controlX- jl jl jl jl jl jl jl jl




ray energy and photon quantity, directly affecting image quality.
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10. Howoftenshould radiologicequipment be testedforquality assurance?
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A. Daily
B. Monthly
C. Annually
D. Only when malfunction occurs
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