Test Bank for Radiologic Science for Technologists 13th Edition (Mosby, 2025) by Bushong and Shields, Isbn no; 9780323765367, all 40 Chapters Covered

TEST BANK FOR RADIOLOGIC SCIENCE FOR TECHN
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OLOGISTS 13TH EDITION BY BUSHONG AND SHIELD
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S |ALL CHAPTERS | QUESTIONS & 100% VERIFIED AN
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SWERS AND RATIONALES | GRADED A+
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,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE +i +i + i +i + i




1. Which of the following best describes the primary purpose of diagnostic r
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adiography?
A. To treat diseases using ionizing radiation
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B. To produce images of internal structures for diagnosis
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C. To monitor patient vital signs
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D. To sterilize medical equipment
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Answer: B +i



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



B. X-ray tube +i



C. Ultrasound transducer +i



D. PET scanner +i




Answer: B +i



Rationale: The X- +i +i



ray tube generates ionizing radiation used in diagnostic radiography. MRI and u
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ltrasound use non- +i +i



ionizing energy, while PET uses radioactive tracers rather than producing radiati
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on 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 +i +i +i +i +i



B. Minimizing radiation exposure while achieving diagnostic quality +i +i +i +i +i +i



C. Limiting patient interaction to reduce infection +i +i +i +i +i



D. Increasing exposure time for better penetration +i +i +i +i +i




Answer: B +i



Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient and s
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taff receive the minimum radiation dose necessary for diagnostic-quality images.
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,4. A radiologic technologist is preparing to image a patient with a suspected
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fracture. Which safety measure is most important?
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A. Using the fastest imaging speed+i +i +i +i



B. Ensuring proper patient shielding and positioning +i +i +i +i +i



C. Increasing exposure to reduce repeat images +i +i +i +i +i



D. Allowing the patient to move during imaging +i +i +i +i +i +i




Answer: B +i



Rationale: Proper shielding and positioning minimize unnecessary exposure and pr
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otect radiosensitive tissues. Options A, C, and D can increase radiation risk or degr
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ade image quality.
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5. Scenario:A 45-year- +
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old patient expresses concern about radiation exposure. How should the techno
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logist respond? +i



A. Ignore their concerns; radiation is safe
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B. Explain that dose is minimized and benefits outweigh risks
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C. Refuse to perform the exam +i +i +i +i



D. Increase exposure to ensure better images +i +i +i +i +i




Answer: B +i



Rationale: Patients should be informed about the low dose and the diagnostic ben
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efits, reducing anxiety and promoting informed consent.
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6. Which professional organization establishes standards for radiologic
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technologists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B +i



Rationale: The American Society of Radiologic Technologists (ASRT) sets educati
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onal and professional standards. FDA regulates equipment, CDC focuses on infection
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control, WHO on global health.
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, 7. Which imaging modality does not use ionizing radiation?
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A. CT scan +i



B. MRI
C. X-ray
D. Fluoroscopy
Answer: B +i



Rationale: MRI uses magnetic fields and radio waves, which are non-
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ionizing. CT, X-ray, and fluoroscopy all 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 +i



D. Cartilage
Answer: C +i



Rationale: Bone marrow contains rapidly dividing cells, making it highly sensitive t
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o ionizing 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 +i



B. Tube voltage and current
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C. Room temperature +i



D. Technologist height +i




Answer: B +i



Rationale: Tube voltage (kVp) and current (mA) control X-
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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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