TEST BANK FOR Workbook 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 l x lx l x lx l x




1. Which of the following best describes the primary purpose of diagnostic ra
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diography?
A. To treat diseases using ionizing radiation
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B. To produceimages of internal structures for diagnosis
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C. To monitor patient vital signs
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D. Tosterilize medical equipment
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Answer: B lx




Rationale: Diagnostic radiography’s main purpose is to produce images of internal bo
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dy structures, allowing physicians to detect and diagnose abnormalities. Options A, C
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, and D are unrelated to diagnostic imaging.
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2. What is the primary source ofionizing radiation in medical imaging?
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A. MRI scanner lx




B. X-ray tube lx




C. Ultrasound transducer lx




D. PET scanner lx




Answer: B lx




Rationale:The X- lx lx




ray tube generates ionizing radiation used in diagnostic radiography. MRI and ultr
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asound use non- lx lx




ionizing energy, while PET uses radioactive tracers rather than producing radiation
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in a tube.
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3. How does the ALARA principle guide radiologic practice?
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A. Maximizing image quality regardless of dose lx lx lx lx lx




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




C. Limiting patient interaction to reduce infection lx lx lx lx lx




D. Increasing exposure time for better penetration lx lx lx lx lx




Answer: B lx




Rationale:ALARA (“As Low As Reasonably Achievable”) ensures patient and sta
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ff receive the minimum radiation dosenecessary for diagnostic-quality images.
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,4. A radiologic technologistis preparing to image a patient with a suspected fr
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acture. Which safety measure is most important?
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A. Using the fastest imaging speed lx lx lx lx




B. Ensuring properpatient shielding and positioning lx lx lx lx lx




C. Increasing exposure to reduce repeat images lx lx lx lx lx




D. Allowing the patient to move during imaging lx lx lx lx lx lx




Answer: B lx




Rationale:Propershielding and positioning minimize unnecessary exposure and prot
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ect radiosensitive tissues. Options A, C, and D can increase radiation risk or degrade i
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mage quality. lx




5. Scenario:A 45-year- lx lx




old patient expresses concern about radiation exposure. How should the technolo
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gist respond? lx




A. Ignore their concerns;radiation is safe lx lx lx lx lx




B. Explain that doseis minimized and benefits outweigh risks
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C. Refuse to performthe exam lx lx lx lx




D. Increase exposure to ensure better images lx lx lx lx lx




Answer: B lx




Rationale:Patients should be informed about the low doseand the diagnostic benefi
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ts, reducing anxiety and promoting informed consent.
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6. Which professional organization establishes standards for radiologic t
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echnologists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B lx




Rationale: The American Society of Radiologic Technologists (ASRT) sets education
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al and professional standards.FDA regulates equipment, CDC focuses on infection cont
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rol, WHO on global health.
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, 7. Which imaging modality does not use ionizing radiation?
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A. CT scan
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B. MRI
C. X-ray
D. Fluoroscopy
Answer: B lx




Rationale:MRI uses magnetic fields and radio waves, which are non-
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ionizing. CT, X-ray, and fluoroscopyall use ionizing radiation.
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8. What is the most radiosensitive tissue in the human body?
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A. Muscle
B. Skin
C. Bone marrow lx




D. Cartilage
Answer: C lx




Rationale:Bone marrow contains rapidly dividing cells, making it highly sensitive to i
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onizing radiation. Muscle, skin, and cartilage are less sensitive.
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9. Which factor primarily affects the quality of an X-ray image?
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A. Patient diet lx




B. Tube voltage and current
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C. Room temperature lx




D. Technologist height lx




Answer: B lx




Rationale:Tube voltage (kVp) and current (mA) controlX-
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ray energy and photon quantity, directly affecting image quality.
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10. How often should radiologic equipment be tested for quality assurance?
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A. Daily
B. Monthly
C. Annually
D. Only when malfunction occurs
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