TEST BANK FOR RADIOLOGIC SCIENCE FOR TECH
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NOLOGISTS 13TH EDITION BY BUSHONG AND SHIE
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LDS |ALL CHAPTERS | QUESTIONS & 100% VERIFIE
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D ANSWERS AND RATIONALES | GRADED A+
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,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE S @ S@ S @ S@ S @
1. Which of the following best describes the primary purpose of diagno
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stic radiography?
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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 S@
Rationale: Diagnostic radiography’s main purpose is to produce images of inte
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rnal body structures, allowing physicians to detect and diagnose abnormalities.
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@Options 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 S@
B. X-ray tube S@
C. Ultrasound transducer S@
D. PET scanner S@
Answer: B S@
Rationale: The X- S@ S@
ray tube generates ionizing radiation used in diagnostic radiography. MRI a
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nd ultrasound use non-
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ionizing energy, while PET uses radioactive tracers rather than producing ra
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diation in a tube. S @ S@ S@
3. How does the ALARA principle guide radiologic practice?
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A. Maximizing image quality regardless of dose S@ S@ S@ S@ S@
B. Minimizing radiation exposure while achieving diagnostic quality
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C. Limiting patient interaction to reduce infection
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D. Increasing exposure time for better penetration
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Answer: B S@
Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient a
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nd staff receive the minimum radiation dose necessary for diagnostic-
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quality images. S@
,4. A radiologic technologist is preparing to image a patient with a suspe
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cted fracture. Which safety measure is most important?
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A. Using the fastest imaging speed
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B. Ensuring proper patient shielding and positioning
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C. Increasing exposure to reduce repeat images
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D. Allowing the patient to move during imaging
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Answer: B S@
Rationale: Proper shielding and positioning minimize unnecessary exposure and
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protect radiosensitive tissues. Options A, C, and D can increase radiation risk
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or degrade image quality.
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5. Scenario: A 45-year- S
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old patient expresses concern about radiation exposure. How should the te
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chnologist respond? S@
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
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D. Increase exposure to ensure better images
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Answer: B S@
Rationale: Patients should be informed about the low dose and the diagnostic
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benefits, reducing anxiety and promoting informed consent.
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6. Which professional organization establishes standards for radiolog
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ic technologists?
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A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B S@
Rationale: The American Society of Radiologic Technologists (ASRT) sets edu
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cational and professional standards. FDA regulates equipment, CDC focuses on in
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fection 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
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B. MRI
C. X-ray
D. Fluoroscopy
Answer: B S@
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
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D. Cartilage
Answer: C S@
Rationale: Bone marrow contains rapidly dividing cells, making it highly sensit
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ive to 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 S@
B. Tube voltage and current
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C. Room temperature
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D. Technologist height S@
Answer: B S@
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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S@ S@ S@ S @ S@ S@
NOLOGISTS 13TH EDITION BY BUSHONG AND SHIE
S @ S@ S@ S@ S@ S@
LDS |ALL CHAPTERS | QUESTIONS & 100% VERIFIE
S@ S@ S@ S@ S@ S@ S@
D ANSWERS AND RATIONALES | GRADED A+
S@ S@ S@ S@ S@ S@
,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE S @ S@ S @ S@ S @
1. Which of the following best describes the primary purpose of diagno
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
stic radiography?
S@
A. To treat diseases using ionizing radiation
S@ S@ S@ S@ S@
B. To produce images of internal structures for diagnosis
S@ S@ S@ S@ S@ S@ S@
C. To monitor patient vital signs
S@ S@ S@ S@
D. To sterilize medical equipment
S@ S@ S@
Answer: B S@
Rationale: Diagnostic radiography’s main purpose is to produce images of inte
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
rnal body structures, allowing physicians to detect and diagnose abnormalities.
S@ S@ S@ S@ S@ S@ S@ S@ S@ S
@Options A, C, and D are unrelated to diagnostic imaging.
S@ S@ S@ S@ S@ S@ S @ S@ S@
2. What is the primary source of ionizing radiation in medical imaging?
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
A. MRI scanner S@
B. X-ray tube S@
C. Ultrasound transducer S@
D. PET scanner S@
Answer: B S@
Rationale: The X- S@ S@
ray tube generates ionizing radiation used in diagnostic radiography. MRI a
S@ S@ S @ S @ S @ S@ S@ S@ S@ S@
nd ultrasound use non-
S@ S@ S@
ionizing energy, while PET uses radioactive tracers rather than producing ra
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
diation in a tube. S @ S@ S@
3. How does the ALARA principle guide radiologic practice?
S@ S@ S@ S@ S@ S@ S@
A. Maximizing image quality regardless of dose S@ S@ S@ S@ S@
B. Minimizing radiation exposure while achieving diagnostic quality
S@ S@ S@ S@ S@ S@
C. Limiting patient interaction to reduce infection
S@ S@ S@ S@ S@
D. Increasing exposure time for better penetration
S@ S@ S@ S@ S@
Answer: B S@
Rationale: ALARA (“As Low As Reasonably Achievable”) ensures patient a
S@ S@ S@ S@ S@ S@ S @ S@ S@
nd staff receive the minimum radiation dose necessary for diagnostic-
S@ S@ S@ S@ S@ S@ S@ S@ S@
quality images. S@
,4. A radiologic technologist is preparing to image a patient with a suspe
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
cted fracture. Which safety measure is most important?
S@ S@ S@ S@ S@ S@ S@
A. Using the fastest imaging speed
S@ S@ S@ S@
B. Ensuring proper patient shielding and positioning
S@ S@ S@ S@ S@
C. Increasing exposure to reduce repeat images
S@ S@ S@ S@ S@
D. Allowing the patient to move during imaging
S@ S@ S@ S@ S@ S@
Answer: B S@
Rationale: Proper shielding and positioning minimize unnecessary exposure and
S@ S@ S@ S@ S@ S @ S@ S@
protect radiosensitive tissues. Options A, C, and D can increase radiation risk
S@ S@ S @ S@ S@ S@ S@ S@ S@ S@ S@ S@
or degrade image quality.
S@ S@ S@ S@
5. Scenario: A 45-year- S
@ S@
old patient expresses concern about radiation exposure. How should the te
S @ S@ S@ S@ S@ S@ S@ S@ S@ S@
chnologist respond? S@
A. Ignore their concerns; radiation is safe
S@ S@ S@ S@ S@
B. Explain that dose is minimized and benefits outweigh risks
S@ S@ S@ S@ S @ S@ S@ S@
C. Refuse to perform the exam
S@ S@ S@ S@
D. Increase exposure to ensure better images
S@ S@ S@ S@ S@
Answer: B S@
Rationale: Patients should be informed about the low dose and the diagnostic
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@ S@ S
benefits, reducing anxiety and promoting informed consent.
@ S@ S@ S @ S@ S@ S@
6. Which professional organization establishes standards for radiolog
S@ S@ S@ S@ S@ S@
ic technologists?
S@
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B S@
Rationale: The American Society of Radiologic Technologists (ASRT) sets edu
S@ S@ S@ S@ S@ S@ S@ S@ S@
cational and professional standards. FDA regulates equipment, CDC focuses on in
S@ S@ S@ S@ S@ S @ S@ S@ S@ S@
fection control, WHO on global health.
S @ S@ S@ S@ S@
, 7. Which imaging modality does not use ionizing radiation?
S@ S@ S@ S@ S@ S@ S@
A. CT scan
S@
B. MRI
C. X-ray
D. Fluoroscopy
Answer: B S@
Rationale: MRI uses magnetic fields and radio waves, which are non-
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
ionizing. CT, X-ray, and fluoroscopy all use ionizing radiation.
S@ S@ S@ S@ S@ S@ S@ S @
8. What is the most radiosensitive tissue in the human body?
S@ S@ S@ S@ S@ S@ S@ S@ S@
A. Muscle
B. Skin
C. Bone marrow
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D. Cartilage
Answer: C S@
Rationale: Bone marrow contains rapidly dividing cells, making it highly sensit
S@ S@ S@ S@ S@ S@ S@ S@ S@ S@
ive to ionizing radiation. Muscle, skin, and cartilage are less sensitive.
S@ S@ S @ S@ S@ S@ S@ S@ S@ S@
9. Which factor primarily affects the quality of an X-ray image?
S@ S@ S@ S@ S@ S@ S@ S@ S@
A. Patient diet S@
B. Tube voltage and current
S@ S@ S@
C. Room temperature
S@
D. Technologist height S@
Answer: B S@
Rationale: Tube voltage (kVp) and current (mA) control X-
S@ S@ S@ S@ S@ S@ S@ S@
ray energy and photon quantity, directly affecting image quality.
S@ S@ S@ S@ S @ S@ S@ S @
10. How often should radiologic equipment be tested for quality assurance?
S@ S@ S@ S@ S@ S@ S@ S@ S@
A. Daily
B. Monthly
C. Annually
D. Only when malfunction occurs
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