Test Bank for Radiologic Science for Technologists, 13th Edition – Bushong & Shields – Complete Exam Questions & Answers (ISBN 9780323825030)

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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,CHAPTER3 1:3INTRODUCTION3 TO3 RADIOLOGIC3 SCIENCE
1. Which3of3the3following3best3describes3the3primary3purpose3of3diagnostic3
radiography?
A. To3treat3diseases3using3ionizing3 radiation
B. To3produce3images3of3internal3 structures3for3diagnosis
C. To3monitor3patient3vital3signs
D. To3sterilize3 medical3equipment
Answer:3B
Rationale:3Diagnostic3radiography’s3main3 purpose3is3to3produce3images3 of3internal
3body3structures,3allowing3 physicians3to3detect3and3diagnose3abnormalities.3 Option

s3A,3C,3and3D3are3unrelated3 to3diagnostic3imaging.


2. What3is3the3primary3source3of3ionizing3radiation3in3medical3imaging?
A. MRI3scanner
B. X-ray3tube
C. Ultrasound3transducer
D. PET3scanner
Answer:3B
Rationale:3The3X-
ray3 tube3generates3 ionizing3 radiation3 used3in3 diagnostic3radiography.3MRI3and3ul
trasound3use3non-
ionizing3 energy,3while3 PET3uses3radioactive3tracers3rather3than3producing3radiati
on3 in3a3tube.


3. How3does3the3ALARA3principle3 guide3radiologic3practice?
A. Maximizing3 image3quality3 regardless3of3dose
B. Minimizing3 radiation3exposure3while3 achieving3 diagnostic3quality
C. Limiting3 patient3interaction3 to3reduce3infection
D. Increasing3exposure3time3for3better3penetration
Answer:3B
Rationale:3ALARA3(“As3Low3As3Reasonably3Achievable”)3 ensures3patient3and3
staff3receive3the3minimum3 radiation3dose3necessary3for3diagnostic-quality3 images.

,4. A3radiologic3technologist3is3preparing3to3image3a3patient3with3a3suspected3
fracture.3Which3safety3measure3is3most3important?
A. Using3the3fastest3imaging3 speed
B. Ensuring3proper3patient3shielding3and3positioning
C. Increasing3exposure3to3reduce3repeat3images
D. Allowing3 the3patient3to3move3during3imaging
Answer:3B
Rationale:3Proper3shielding3and3positioning3 minimize3 unnecessary3exposure3and3pr
otect3radiosensitive3 tissues.3Options3A,3C,3and3D3can3increase3radiation3 risk3or3degr
ade3image3quality.


5. Scenario:3A345-year-
old3 patient3expresses3concern3about3radiation3 exposure.3How3should3the3techno
logist3respond?
A. Ignore3their3concerns;3radiation3is3safe
B. Explain3 that3dose3is3minimized3 and3benefits3 outweigh3risks
C. Refuse3to3perform3the3exam
D. Increase3exposure3to3ensure3better3images
Answer:3B
Rationale:3Patients3should3be3informed3 about3the3low3dose3and3the3diagnostic3ben
efits,3reducing3anxiety3 and3promoting3informed3consent.


6. Which3professional3organization3establishes3standards3for3radiologic
3technologists?

A. WHO
B. ASRT
C. FDA
D. CDC
Answer:3B
Rationale:3The3American3Society3of3Radiologic3Technologists3(ASRT)3sets3educati
onal3and3professional3standards.3FDA3regulates3 equipment,3 CDC3focuses3on3infection3
control,3WHO3on3global3health.

, 7. Which3imaging3modality3does3not3use3ionizing3radiation?
A. CT3scan
B. MRI
C. X-ray
D. Fluoroscopy
Answer:3B
Rationale:3MRI3uses3magnetic3 fields3and3radio3waves,3which3are3non-
ionizing.3CT,3X-ray,3and3fluoroscopy3all3use3ionizing3 radiation.


8. What3is3the3 most3radiosensitive3tissue3in3the3human3body?
A. Muscle
B. Skin
C. Bone3marrow
D. Cartilage
Answer:3C
Rationale:3Bone3marrow3contains3rapidly3dividing3cells,3making3 it3highly3 sensitive3
to3ionizing3 radiation.3 Muscle,3skin,3and3cartilage3 are3less3sensitive.


9. Which3factor3primarily3affects3the3quality3of3an3X-ray3image?
A. Patient3diet
B. Tube3voltage3and3current
C. Room3temperature
D. Technologist3height
Answer:3B
Rationale:3Tube3voltage3(kVp)3and3current3(mA)3control3X-
ray3energy3and3photon3quantity,3 directly3affecting3image3 quality.


10. How3often3should3radiologic3equipment3be3tested3for3quality3assurance?
A. Daily
B. Monthly
C. Annually
D. Only3when3malfunction3 occurs