DOCUMENTS BY TOPTUTOR254
TEST BANK
Radiologic Science for Technologists
by Bushong And Shields
13th Edition
All Chapters | Verified Questions & Answer with Rationales | Graded A+| ISBN 9780323765367
Page 1 of 224
, DOCUMENTS BY TOPTUTOR254
TABLE OF CONTENTS
Chapter 01: Introduction to Radiologic Science
Chapter 02: Radiation Physics and Production
Chapter 03: Interaction of X-Rays with Matter
Chapter 04: Radiation Protection and Safety
Chapter 05: Image Receptor Systems and Image Quality
Chapter 06: Radiographic Image Production and Exposure Factors
Chapter 07: Image Quality and Artifacts
Chapter 08: Computed Tomography (CT) Principles
Chapter 09: Fluoroscopy and Special Procedures
Chapter 10: Magnetic Resonance Imaging (MRI) Principles
Chapter 11: Digital Imaging and PACS
Chapter 12: Radiation Biology
Chapter 13: Radiographic Equipment and Quality Control
Chapter 14: Computed Tomography (CT) Image Formation and Quality
Chapter 15: Advanced Imaging Modalities: PET, Nuclear Medicine, and Hybrid
Imaging
Chapter 16: Magnetic Resonance Imaging (MRI) Physics and Safety
Chapter 17: Ultrasound and Diagnostic Sonography
Chapter 18: Radiographic Image Quality and Evaluation
Chapter 19: Interventional Radiology and Special Procedures
Chapter 20: Quality Management and Radiology Department Operations
Page 2 of 224
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CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE
1. Which of the following best describes the primary purpose of diagnostic
radiography?
A. To treat diseases using ionizing radiation
B. To produce images of internal structures for diagnosis
C. To monitor patient vital signs
D. To sterilize medical equipment
CORRECT ANSWER: B
Rationale: Diagnostic radiography’s main purpose is to produce images of internal body
structures, allowing physicians to detect and diagnose abnormalities. Options A, C, and D are
unrelated to diagnostic imaging.
2. What is the primary source of ionizing radiation in medical imaging?
A. MRI scanner
B. X-ray tube
C. Ultrasound transducer
D. PET scanner
CORRECT ANSWER: B
Rationale: The X-ray tube generates ionizing radiation used in diagnostic radiography. MRI
and ultrasound use non-ionizing energy, while PET uses radioactive tracers rather than
producing radiation in a tube.
3. How does the ALARA principle guide radiologic practice?
A. Maximizing image quality regardless of dose
B. Minimizing radiation exposure while achieving diagnostic quality
C. Limiting patient interaction to reduce infection
D. Increasing exposure time for better penetration
CORRECT ANSWER: B
Page 3 of 224
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Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient and staff receive the
minimum radiation dose necessary for diagnostic-quality images.
4. A radiologic technologist is preparing to image a patient with a suspected
fracture. Which safety measure is most important?
A. Using the fastest imaging speed
B. Ensuring proper patient shielding and positioning
C. Increasing exposure to reduce repeat images
D. Allowing the patient to move during imaging
CORRECT ANSWER: B
Rationale: Proper shielding and positioning minimize unnecessary exposure and protect
radiosensitive tissues. Options A, C, and D can increase radiation risk or degrade image
quality.
5. Scenario: A 45-year-old patient expresses concern about radiation exposure. How
should the technologist respond?
A. Ignore their concerns; radiation is safe
B. Explain that dose is minimized and benefits outweigh risks
C. Refuse to perform the exam
D. Increase exposure to ensure better images
CORRECT ANSWER: B
Rationale: Patients should be informed about the low dose and the
diagnostic benefits, reducing anxiety and promoting informed consent.
6. Which professional organization establishes standards for radiologic technologists?
A. WHO
Page 4 of 224
TEST BANK
Radiologic Science for Technologists
by Bushong And Shields
13th Edition
All Chapters | Verified Questions & Answer with Rationales | Graded A+| ISBN 9780323765367
Page 1 of 224
, DOCUMENTS BY TOPTUTOR254
TABLE OF CONTENTS
Chapter 01: Introduction to Radiologic Science
Chapter 02: Radiation Physics and Production
Chapter 03: Interaction of X-Rays with Matter
Chapter 04: Radiation Protection and Safety
Chapter 05: Image Receptor Systems and Image Quality
Chapter 06: Radiographic Image Production and Exposure Factors
Chapter 07: Image Quality and Artifacts
Chapter 08: Computed Tomography (CT) Principles
Chapter 09: Fluoroscopy and Special Procedures
Chapter 10: Magnetic Resonance Imaging (MRI) Principles
Chapter 11: Digital Imaging and PACS
Chapter 12: Radiation Biology
Chapter 13: Radiographic Equipment and Quality Control
Chapter 14: Computed Tomography (CT) Image Formation and Quality
Chapter 15: Advanced Imaging Modalities: PET, Nuclear Medicine, and Hybrid
Imaging
Chapter 16: Magnetic Resonance Imaging (MRI) Physics and Safety
Chapter 17: Ultrasound and Diagnostic Sonography
Chapter 18: Radiographic Image Quality and Evaluation
Chapter 19: Interventional Radiology and Special Procedures
Chapter 20: Quality Management and Radiology Department Operations
Page 2 of 224
, DOCUMENTS BY TOPTUTOR254
CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE
1. Which of the following best describes the primary purpose of diagnostic
radiography?
A. To treat diseases using ionizing radiation
B. To produce images of internal structures for diagnosis
C. To monitor patient vital signs
D. To sterilize medical equipment
CORRECT ANSWER: B
Rationale: Diagnostic radiography’s main purpose is to produce images of internal body
structures, allowing physicians to detect and diagnose abnormalities. Options A, C, and D are
unrelated to diagnostic imaging.
2. What is the primary source of ionizing radiation in medical imaging?
A. MRI scanner
B. X-ray tube
C. Ultrasound transducer
D. PET scanner
CORRECT ANSWER: B
Rationale: The X-ray tube generates ionizing radiation used in diagnostic radiography. MRI
and ultrasound use non-ionizing energy, while PET uses radioactive tracers rather than
producing radiation in a tube.
3. How does the ALARA principle guide radiologic practice?
A. Maximizing image quality regardless of dose
B. Minimizing radiation exposure while achieving diagnostic quality
C. Limiting patient interaction to reduce infection
D. Increasing exposure time for better penetration
CORRECT ANSWER: B
Page 3 of 224
, DOCUMENTS BY TOPTUTOR254
Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient and staff receive the
minimum radiation dose necessary for diagnostic-quality images.
4. A radiologic technologist is preparing to image a patient with a suspected
fracture. Which safety measure is most important?
A. Using the fastest imaging speed
B. Ensuring proper patient shielding and positioning
C. Increasing exposure to reduce repeat images
D. Allowing the patient to move during imaging
CORRECT ANSWER: B
Rationale: Proper shielding and positioning minimize unnecessary exposure and protect
radiosensitive tissues. Options A, C, and D can increase radiation risk or degrade image
quality.
5. Scenario: A 45-year-old patient expresses concern about radiation exposure. How
should the technologist respond?
A. Ignore their concerns; radiation is safe
B. Explain that dose is minimized and benefits outweigh risks
C. Refuse to perform the exam
D. Increase exposure to ensure better images
CORRECT ANSWER: B
Rationale: Patients should be informed about the low dose and the
diagnostic benefits, reducing anxiety and promoting informed consent.
6. Which professional organization establishes standards for radiologic technologists?
A. WHO
Page 4 of 224
