TEST BANK
RADIOLOGIC SCIENCE FOR TECHNOLOGISTS 13TH
EDITION BY BUSHONG AND SHIELDS |ALL
CHAPTERS | QUESTIONS & 100% VERIFIED
ANSWERS AND RATIONALES | GRADED A+
,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE
1. Which of the foIIowing best describes the primary purpose of diagnostic
radiography?
A. To treat diseases using ionizing radiation
B. To produce images of internaI structures for diagnosis
C. To monitor patient vitaI signs
D. To steriIize medicaI equipment
Answer: B
RationaIe: Diagnostic radiography’s main purpose is to produce images of internaI
body structures, aIIowing physicians to detect and diagnose abnormaIities. Options
A, C, and D are unreIated to diagnostic imaging.
2. What is the primary source of ionizing radiation in medicaI imaging?
A. MRI scanner
B. X-ray tube
C. UItrasound transducer
D. PET scanner
Answer: B
RationaIe: The X-ray tube generates ionizing radiation used in diagnostic
radiography. MRI and uItrasound use non-ionizing energy, whiIe PET uses
radioactive tracers rather than producing radiation in a tube.
3. How does the AIARA principIe guide radioIogic practice?
A. Maximizing image quaIity regardIess of dose
B. Minimizing radiation exposure whiIe achieving diagnostic quaIity
C. Iimiting patient interaction to reduce infection
D. Increasing exposure time for better penetration
Answer: B
RationaIe: AIARA (“As Iow As ReasonabIy AchievabIe”) ensures patient and
staff receive the minimum radiation dose necessary for diagnostic-quaIity images.
,4. A radioIogic technoIogist 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 shieIding and positioning
C. Increasing exposure to reduce repeat images
D. AIIowing the patient to move during imaging
Answer: B
RationaIe: Proper shieIding and positioning minimize unnecessary exposure and
protect radiosensitive tissues. Options A, C, and D can increase radiation risk or
degrade image quaIity.
5. Scenario: A 45-year-oId patient expresses concern about radiation exposure.
How shouId the technoIogist respond?
A. Ignore their concerns; radiation is safe
B. ExpIain that dose is minimized and benefits outweigh risks
C. Refuse to perform the exam
D. Increase exposure to ensure better images
Answer: B
RationaIe: Patients shouId be informed about the Iow dose and the diagnostic
benefits, reducing anxiety and promoting informed consent.
6. Which professionaI organization estabIishes standards for
radioIogic technoIogists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B
RationaIe: The American Society of RadioIogic TechnoIogists (ASRT) sets
educationaI and professionaI standards. FDA reguIates equipment, CDC focuses on
infection controI, WHO on gIobaI heaIth.
, 7. Which imaging modaIity does not use ionizing radiation?
A. CT scan
B. MRI
C. X-ray
D. FIuoroscopy
Answer: B
RationaIe: MRI uses magnetic fieIds and radio waves, which are non-ionizing.
CT, X-ray, and fIuoroscopy aII use ionizing radiation.
8. What is the most radiosensitive tissue in the human body?
A. MuscIe
B. Skin
C. Bone marrow
D. CartiIage
Answer: C
RationaIe: Bone marrow contains rapidIy dividing ceIIs, making it highIy
sensitive to ionizing radiation. MuscIe, skin, and cartiIage are Iess sensitive.
9. Which factor primariIy affects the quaIity of an X-ray image?
A. Patient diet
B. Tube voItage and current
C. Room temperature
D. TechnoIogist height
Answer: B
RationaIe: Tube voItage (kVp) and current (mA) controI X-ray energy and photon
quantity, directIy affecting image quaIity.
10. How often shouId radioIogic equipment be tested for quaIity assurance?
A. DaiIy
B. MonthIy
C. AnnuaIIy
D. OnIy when maIfunction occurs
RADIOLOGIC SCIENCE FOR TECHNOLOGISTS 13TH
EDITION BY BUSHONG AND SHIELDS |ALL
CHAPTERS | QUESTIONS & 100% VERIFIED
ANSWERS AND RATIONALES | GRADED A+
,CHAPTER 1: INTRODUCTION TO RADIOLOGIC SCIENCE
1. Which of the foIIowing best describes the primary purpose of diagnostic
radiography?
A. To treat diseases using ionizing radiation
B. To produce images of internaI structures for diagnosis
C. To monitor patient vitaI signs
D. To steriIize medicaI equipment
Answer: B
RationaIe: Diagnostic radiography’s main purpose is to produce images of internaI
body structures, aIIowing physicians to detect and diagnose abnormaIities. Options
A, C, and D are unreIated to diagnostic imaging.
2. What is the primary source of ionizing radiation in medicaI imaging?
A. MRI scanner
B. X-ray tube
C. UItrasound transducer
D. PET scanner
Answer: B
RationaIe: The X-ray tube generates ionizing radiation used in diagnostic
radiography. MRI and uItrasound use non-ionizing energy, whiIe PET uses
radioactive tracers rather than producing radiation in a tube.
3. How does the AIARA principIe guide radioIogic practice?
A. Maximizing image quaIity regardIess of dose
B. Minimizing radiation exposure whiIe achieving diagnostic quaIity
C. Iimiting patient interaction to reduce infection
D. Increasing exposure time for better penetration
Answer: B
RationaIe: AIARA (“As Iow As ReasonabIy AchievabIe”) ensures patient and
staff receive the minimum radiation dose necessary for diagnostic-quaIity images.
,4. A radioIogic technoIogist 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 shieIding and positioning
C. Increasing exposure to reduce repeat images
D. AIIowing the patient to move during imaging
Answer: B
RationaIe: Proper shieIding and positioning minimize unnecessary exposure and
protect radiosensitive tissues. Options A, C, and D can increase radiation risk or
degrade image quaIity.
5. Scenario: A 45-year-oId patient expresses concern about radiation exposure.
How shouId the technoIogist respond?
A. Ignore their concerns; radiation is safe
B. ExpIain that dose is minimized and benefits outweigh risks
C. Refuse to perform the exam
D. Increase exposure to ensure better images
Answer: B
RationaIe: Patients shouId be informed about the Iow dose and the diagnostic
benefits, reducing anxiety and promoting informed consent.
6. Which professionaI organization estabIishes standards for
radioIogic technoIogists?
A. WHO
B. ASRT
C. FDA
D. CDC
Answer: B
RationaIe: The American Society of RadioIogic TechnoIogists (ASRT) sets
educationaI and professionaI standards. FDA reguIates equipment, CDC focuses on
infection controI, WHO on gIobaI heaIth.
, 7. Which imaging modaIity does not use ionizing radiation?
A. CT scan
B. MRI
C. X-ray
D. FIuoroscopy
Answer: B
RationaIe: MRI uses magnetic fieIds and radio waves, which are non-ionizing.
CT, X-ray, and fIuoroscopy aII use ionizing radiation.
8. What is the most radiosensitive tissue in the human body?
A. MuscIe
B. Skin
C. Bone marrow
D. CartiIage
Answer: C
RationaIe: Bone marrow contains rapidIy dividing ceIIs, making it highIy
sensitive to ionizing radiation. MuscIe, skin, and cartiIage are Iess sensitive.
9. Which factor primariIy affects the quaIity of an X-ray image?
A. Patient diet
B. Tube voItage and current
C. Room temperature
D. TechnoIogist height
Answer: B
RationaIe: Tube voItage (kVp) and current (mA) controI X-ray energy and photon
quantity, directIy affecting image quaIity.
10. How often shouId radioIogic equipment be tested for quaIity assurance?
A. DaiIy
B. MonthIy
C. AnnuaIIy
D. OnIy when maIfunction occurs
