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Test Bank for Radiologic Science For Technologists 13th Edition
By Bushong And Shields
All Chapters | Verified Questions & Answer with Rationales | Graded A+
ISBN 9780323765367
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TABLE OF CONTENTS
chapter 1: Introduction To Radiologic Science ................................................... 3
Chapter 2: Radiation Physics And Production .................................................. 10
Chapter 3: Interaction Of X-Rays With Matter .................................................. 18
Chapter 4: Radiation Protection And Safety ..................................................... 27
Chapter 5: Image Receptor Systems And Quality ............................................. 39
Chapter 6: Radiographic Image Production And Factors ................................. 51
Chapter 7: Image Quality And Artifacts ............................................................ 62
Chapter 8: Computed Tomography (Ct) Principles........................................... 74
Chapter 9: Fluoroscopy And Special Procedures .............................................. 86
Chapter 10: Magnetic Resonance Imaging (Mri) Principles ............................. 94
Chapter 11: Digital Imaging And Pacs ............................................................. 103
Chapter 12: Radiation Protection And Safety ................................................. 114
Chapter 13: Radiation Biology ........................................................................ 127
Chapter 14: Radiographic Equipment And Quality Control ........................... 138
Chapter 15: Computed Tomography (Ct) Image ............................................. 150
Chapter 16: Advanced Imaging Modalities – Pet, Nuclear Medicine, And
Hybrid Imaging ............................................................................................... 162
Chapter 17: Magnetic Resonance Imaging (Mri) Physics And Safety ............. 174
Chapter 18: Ultrasound And Diagnostic Sonography ..................................... 182
Chapter 19: Radiation Protection And Safety ................................................. 191
Chapter 20: Radiographic Image Quality And Evaluation .............................. 199
Chapter 21: Interventional Radiology And Special Procedures ..................... 208
Chapter 22: Quality Management And Radiology Department Operations ... 216
~2~
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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
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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
~4~
Test Bank for Radiologic Science For Technologists 13th Edition
By Bushong And Shields
All Chapters | Verified Questions & Answer with Rationales | Graded A+
ISBN 9780323765367
~1~
,THIS DOCUMENT BELONGS TO TESTBANKSPROF
TABLE OF CONTENTS
chapter 1: Introduction To Radiologic Science ................................................... 3
Chapter 2: Radiation Physics And Production .................................................. 10
Chapter 3: Interaction Of X-Rays With Matter .................................................. 18
Chapter 4: Radiation Protection And Safety ..................................................... 27
Chapter 5: Image Receptor Systems And Quality ............................................. 39
Chapter 6: Radiographic Image Production And Factors ................................. 51
Chapter 7: Image Quality And Artifacts ............................................................ 62
Chapter 8: Computed Tomography (Ct) Principles........................................... 74
Chapter 9: Fluoroscopy And Special Procedures .............................................. 86
Chapter 10: Magnetic Resonance Imaging (Mri) Principles ............................. 94
Chapter 11: Digital Imaging And Pacs ............................................................. 103
Chapter 12: Radiation Protection And Safety ................................................. 114
Chapter 13: Radiation Biology ........................................................................ 127
Chapter 14: Radiographic Equipment And Quality Control ........................... 138
Chapter 15: Computed Tomography (Ct) Image ............................................. 150
Chapter 16: Advanced Imaging Modalities – Pet, Nuclear Medicine, And
Hybrid Imaging ............................................................................................... 162
Chapter 17: Magnetic Resonance Imaging (Mri) Physics And Safety ............. 174
Chapter 18: Ultrasound And Diagnostic Sonography ..................................... 182
Chapter 19: Radiation Protection And Safety ................................................. 191
Chapter 20: Radiographic Image Quality And Evaluation .............................. 199
Chapter 21: Interventional Radiology And Special Procedures ..................... 208
Chapter 22: Quality Management And Radiology Department Operations ... 216
~2~
, THIS DOCUMENT BELONGS TO TESTBANKSPROF
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
~3~
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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
~4~
