TEST BANK FOR Bushong’s Radiologic Science for Technologists: Physics, Biology, and Protection 13th Edition by Stewart C. Bushong, Elizabeth Shields ISBN:978-0323765367 COMPLETE GUIDE 100% VERIFIED A+ GRADE ASSURED!!!!NEW LATEST UPDATE!!!!

,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE c n cn c n cn c n




1. Which of the following best describes the primary purpose of diagnostic r
cn cn cn cn cn cn cn cn cn cn cn




adiography?
A. To treat diseases using ionizing radiation
cn cn cn cn cn




B. To produceimages of internal structures for diagnosis
cn cn cn cn cn cn cn




C. To monitor patient vital signs
cn cn cn cn




D. To sterilize medical equipment
cn cn cn




Answer: B cn




Rationale: Diagnostic radiography’s main purpose is to produce images of internal b
cn cn cn cn cn cn cn cn cn cn cn




ody structures, allowing physicians to detect and diagnose abnormalities. Options A,
cn cn cn cn cn cn cn cn c n cn




C, and D are unrelated to diagnostic imaging.
cn cn cn cn cn c n cn cn




2. What is the primary source ofionizing radiation in medical imaging?
cn cn cn cn cn cn cn cn cn cn




A. MRI scanner cn




B. X-ray tube cn




C. Ultrasound transducer cn




D. PET scanner cn




Answer: B cn




Rationale:The X- cn cn




ray tube generates ionizing radiation used in diagnostic radiography. MRI and ult
cn cn c n c n c n cn cn cn cn cn cn




rasound use non- cn cn




ionizing energy, while PET uses radioactive tracers rather than producing radiatio
c n cn c n cn cn cn cn cn cn cn




n in a tube.
c n cn cn




3. How does the ALARA principle guide radiologic practice?
cn cn cn cn cn cn cn




A. Maximizing image quality regardless of dose cn cn cn cn cn




B. Minimizing radiation exposure while achieving diagnostic quality cn cn cn cn cn cn




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




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




Answer: B cn




Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient and st
cn cn cn cn cn cn c n cn cn cn




aff receive the minimum radiation dosenecessary for diagnostic-quality images.
cn cn cn c n cn cn cn cn cn

,4. A radiologic technologist is preparing to image a patient with a suspected f
cn cn cn cn cn cn cn cn cn cn cn cn




racture. Which safety measure is most important?
cn cn cn cn cn cn




A. Using the fastest imaging speed cn cn cn cn




B. Ensuring properpatient shielding and positioning cn cn cn cn cn




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




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




Answer: B cn




Rationale:Propershielding and positioning minimize unnecessary exposure and pro
cn cn cn cn cn c n cn cn cn




tect radiosensitive tissues. Options A, C, and D can increase radiation risk or degrad
cn c n cn cn cn cn cn cn cn cn c n cn cn




e image quality.
cn cn




5. Scenario:A 45-year- cn cn




old patient expresses concern about radiation exposure. How should the technol
c n cn cn cn cn cn cn cn cn cn




ogist respond? cn




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




B. Explain that doseis minimized and benefits outweigh risks
cn cn cn cn c n cn cn cn




C. Refuse to perform the exam cn cn cn cn




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




Answer: B cn




Rationale:Patients should be informed about the low doseand the diagnostic benef
cn cn cn cn cn cn cn cn cn cn cn cn




its, reducing anxiety and promoting informed consent.
cn cn c n cn cn cn




6. Which professional organization establishes standards for radiologic t
cn cn cn cn cn cn cn




echnologists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B cn




Rationale: The American Society of Radiologic Technologists (ASRT) sets educatio
cn cn cn cn cn cn cn cn cn




nal and professional standards. FDA regulates equipment, CDC focuses on infection co
cn cn cn cn cn c n cn cn cn cn c n




ntrol, WHO on global health.
cn cn cn cn

, 7. Which imaging modality does not use ionizing radiation?
cn cn cn cn cn cn cn




A. CT scancn




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




Rationale:MRI uses magnetic fields and radio waves, which are non-
cn cn cn cn cn cn cn cn cn cn




ionizing. CT, X-ray, and fluoroscopyall use ionizing radiation.
cn cn cn cn cn cn cn c n




8. What is the most radiosensitive tissue in the human body?
cn cn cn cn cn cn cn cn cn




A. Muscle
B. Skin
C. Bone marrow cn




D. Cartilage
Answer: C cn




Rationale:Bone marrow contains rapidly dividing cells, making it highly sensitive to
cn cn cn cn cn cn cn cn cn cn cn




ionizing radiation. Muscle, skin, and cartilage are less sensitive.
cn c n c n cn cn cn c n cn cn




9. Which factor primarily affects the quality of an X-ray image?
cn cn cn cn cn cn cn cn cn




A. Patient diet cn




B. Tube voltage and current
cn cn cn




C. Room temperature cn




D. Technologist height cn




Answer: B cn




Rationale:Tube voltage (kVp) and current (mA) controlX-
cn cn cn cn cn cn cn cn




ray energy and photon quantity, directly affecting image quality.
cn cn cn cn c n cn cn c n




10. How often should radiologic equipment be tested for quality assurance?
cn cn cn cn cn cn cn cn cn




A. Daily
B. Monthly
C. Annually
D. Only when malfunction occurs
cn cn cn