Radiologic Science Practice Exam
Course Introduction
Radiologic Science is a comprehensive course that explores the fundamental principles and practices of medical imaging used in the diagnosis and treatment of diseases. The curriculum covers the physics of radiation, anatomy and physiology relevant to imaging, radiation safety, image acquisition, digital imaging techniques, and patient positioning. Students learn about various imaging modalities including X-ray, computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound. Emphasis is placed on ethical and professional standards, patient care, and the role of radiologic technologists within the healthcare team. This course prepares students for clinical practice and provides a foundation for further study in specialized areas of radiologic technology.
Recommended Textbook
Radiation Protection in Medical Radiography 8th Edition by Mary Alice
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15 Chapters
370 Verified Questions
370 Flashcards
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Page 2
Chapter 1: Introduction to Radiation Protection
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) Typically,people are more willing to accept a risk if they perceive that the potential benefit to be obtained is
A)greater than the risk involved.
B)equal to the risk involved.
C)less than the risk involved.
D)typically,people are not willing to accept risk no matter how great the benefit may be.
Answer: A
Q2) X-rays are a form of which of the following kinds of radiation?
A)Environmental
B)Ionizing
C)Internal
D)Nonionizing
Answer: B
Q3) The term as low as reasonable achievable (ALARA)is synonymous with the term
A)background equivalent radiation time (BERT).
B)equivalent dose (EqD).
C)diagnostic efficacy.
D)optimization for radiation protection (ORP).
Answer: D
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Page 3
Chapter 2: Radiation: Types, sources, and Doses Received
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) Which of the following is considered by the EPA to be the second leading cause of lung cancer in the United States?
A)Annual PA and lateral chest radiographic images
B)Cosmic ray exposure
C)Radon exposure
D)A fluoroscopic examination of the upper gastrointestinal tract
Answer: C
Q2) What is the latent period for most radiation-induced cancers?
A)1 year
B)5 years
C)7 years
D)15 years or more
Answer: D
Q3) What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans?
A)2.0 mSv
B)3.2 mSv
C)6.3 mSv
D)9.6 mSv
Answer: C
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Chapter 3: Interaction of X-Radiation With Matter
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Sample Questions
Q1) Which of the following is not a type of interaction between x-radiation and biologic matter?
A)Compton scattering
B)Bremsstrahlung
C)Pair production
D)Photoelectric absorption
Answer: B
Q2) Which of the following results in all-directional scatter?
A)Classical interaction
B)Coherent interaction
C)Photoelectric interaction
D)Compton interaction
Answer: D
Q3) Which of the following is not another term for coherent scattering?
A)Characteristic
B)Classical
C)Elastic
D)Unmodified
Answer: A
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Page 5
Chapter 4: Radiation Quantities and Units
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Sample Questions
Q1) What theory relates the ionization produced in a small cavity within an irradiated medium or object to the energy absorbed in that medium as a result of its radiation exposure?
A)Air kerma
B)Bragg-Gray
C)Committed dose
D)Tissue kerma
Q2) As the intensity of x-ray exposure of the air volume increases,the number of electron-ion pairs produced
A)also increases.
B)decreases considerably.
C)decreases slightly.
D)remains the same.
Q3) What instrument can be calibrated to read air kerma?
A)Amp meter
B)Coulomb counter
C)Standard,or free-air,ionization chamber
D)Voltmeter
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6
Chapter 5: Radiation Monitoring
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Sample Questions
Q1) Whenever the letter "M" appears under the current monitoring period or in the cumulative columns of a personnel monitoring report,it signifies that a (an)
A)mistake has been made in recording the equivalent dose.
B)equivalent dose higher than the minimum measurable radiation quantity was recorded during that time.
C)equivalent dose below the minimum measurable radiation quantity was recorded during that time.
D)maximal equivalent dose has been exceeded during that time.
Q2) Three different filters are incorporated into the detector packet of the optically stimulated luminescence dosimeter.Of what are these filters made?
A)Aluminum,tin,and copper
B)Aluminum,tin,and lead
C)Zinc,copper,and barium
D)Zinc,copper,and lead
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Chapter 6: Overview of Cell Biology
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Sample Questions
Q1) During what phase of mitosis are the centromeres severed followed by the sister chromatids moving apart and are then subsequently pulled toward opposite poles of the mitotic spindle?
A)Prophase
B)Metaphase
C)Anaphase
D)Telophase
Q2) The steps,or rungs,of the DNA ladder-like structure consist of complementary chemicals that are
A)acetic acids.
B)fatty acids.
C)pairs of nitrogenous bases.
D)sugar-phosphate compounds.
Q3) The much smaller structures that make up nucleic acids are called A)carbohydrates.
B)fatty acids.
C)nucleotides.
D)polysaccharides.
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8
Chapter 7: Molecular and Cellular Radiation Biology
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Sample Questions
Q1) Neutrophils play an important role in
A)initiating the circulation of blood through the human body.
B)initiating blood clotting.
C)fighting infection.
D)preventing hemorrhage.
Q2) Which of the following humans is most radiosensitive?
A)A mature adult
B)An embryo-fetus during the first trimester of pregnancy
C)A fetus during the third trimester of gestation
D)A 5-year-old child
Q3) Which of the following curves illustrates the radiation sensitivity of a particular type of cell?
A)Cell specialization curve
B)Cell extrapolation curve
C)Dose-response curve
D)Cell survival curve
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Chapter 8: Early Tissue Reactions and Their Effects on Organ Systems
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Sample Questions
Q1) Which of the following is not a form of acute radiation syndrome?
A)Carcinogenic syndrome
B)Hematopoietic syndrome
C)Gastrointestinal syndrome
D)Cerebrovascular syndrome
Q2) The hematopoietic form of acute radiation syndrome is also called the A)Auger syndrome.
B)bone marrow syndrome.
C)cerebrovascular syndrome.
D)cytogenetic syndrome.
Q3) Moist and dry desquamation can be caused by
A)high radiation doses.
B)low radiation doses.
C)radiation doses received during routine diagnostic imaging procedures.
D)radiation dose received during annual testing of diagnostic imaging equipment.
Q4) Atrophy refers to
A)aging of the skin from radiation exposure.
B)shrinkage of organs and tissues after a high radiation dose is received.
C)necrosis of the hypodermis from radiation exposure.
D)wrinkling of the skin from radiation exposure.
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Chapter 9: Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems
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Sample Questions
Q1) To assess the magnitude and severity of late effects on the exposed population from the 1986 nuclear power station accident at Chernobyl
A)follow-up is not necessary because the radiation received by the entire exposed population was fatal.
B)minimal follow-up is only necessary because the exposed population did not receive sufficient radiation exposure to cause severe late effects.
C)short-term follow-up studies are necessary.
D)long-term follow-up studies are necessary.
Q2) During the preimplantation stage of development,the fertilized ovum divides and forms a ball-like structure containing undifferentiated cells.If this structure is irradiated with a dose in the range of 0.05 to 0.15 Gyt which of the following will result?
A)Congenital abnormalities
B)Delayed bone growth
C)Embryonic death
D)Microcephaly
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Chapter 10: Dose Limits for Exposure to Ionizing Radiation
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Sample Questions
Q1) Which of the following are responsibilities of a health care facility's radiation safety committee (RSC)?
1)Delegate operational funds in the budget for the radiation safety program
2)Provide guidance for the radiation safety program
3)Facilitate the ongoing operation of the radiation safety program
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Q2) Working in conjunction with their partners in other agencies,the FDA intends to take action to
1)promote safe use of medical imaging devices.
2)support informed clinical decision.
3)increase patient awareness.
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
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Chapter 11: Equipment Design for Radiation Protection
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Sample Questions
Q1) When obtaining a dorsoplantar projection of a foot,which of the following types of filters should be used to provide a greater uniform density of the anatomy?
A)Bilateral wedge filter
B)Trough filter
C)Thoraeus filter
D)Wedge filter
Q2) In standard image intensification fluoroscopy,an x-ray beam half-value-layer (HVL)of 3 to 4.5 mm aluminum is considered acceptable when kVp ranges from
A)50 to 60.
B)60 to 70.
C)70 to 80.
D)80 to 100.
Q3) Computed radiography,because of its higher exposure latitude,makes grid use on the pediatric population
A)absolutely necessary for all radiographic examinations.
B)less necessary than was previously believed.
C)necessary only for extremity examinations.
D)unnecessary for any examination.
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13
Chapter 12: Management of Patient Radiation Dose During Diagnostic X-Ray Procedures
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Sample Questions
Q1) During a radiographic examination,which of the following combinations of technical exposure factors reduce patient radiation dose?
A)Lower kVp,higher mAs
B)Higher kVp,lower mAs
C)Higher kVp,higher mAs
D)Lower kVp,lower mAs
Q2) When a pregnant patient must undergo a radiographic procedure,which of the following practices will minimize radiation exposure?
A)Selecting technical exposure factors that are appropriate for the part of the body to be radiographed
B)Opening the x-ray beam collimator shutters as wide as possible to ensure complete coverage of the image receptor
C)Precisely collimating the radiographic beam to include only the anatomic area of interest and shielding the lower abdomen and pelvis when this area does not need to be included in the area to be irradiated
D)A and C
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14
Chapter 13: Special Considerations on Safety in Computed
Tomography and Mammography
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Sample Questions
Q1) Lower tube current is used in anatomic regions where there is ____________ attenuation because the anatomy is ____________ or _________ dense.
A)increased;thicker;more B)decreased;thicker;more C)increased;thinner;less D)decreased;thinner;less
Q2) Which of the following terms are synonymous in relation to computed tomography?
1)Diagonal
2)Helical
3)Spiral
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Q3) In spiral image acquisition,the patient table moves during the acquisition so that a A)single-dimension image is obtained.
B)three-dimensional data set is obtained.
C)four-dimensional data set is obtained.
D)six-dimensional data set is obtained.
Page 15
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Chapter 14: Management of Imaging Personnel Radiation
Dose During X-Ray Procedures
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Sample Questions
Q1) When the time spent in a higher radiation area is reduced or limited,occupational exposure
A)is also reduced.
B)is increased slightly.
C)remains the same.
D)is increased considerably.
Q2) When doors to radiographic and fluoroscopic rooms are closed during radiation exposures,a substantial degree of protection is provided for persons in areas adjacent to the room door.This is because in most facilities room doors have attenuation for diagnostic energy x-ray equivalent to that provided by _______ mm of lead.
A)0.2
B)0.4
C)0.6
D)0.8
Q3) Whenever scattered radiation decreases,the radiographer's exposure
A)decreases.
B)increases slightly.
C)increases considerably.
D)remains the same.
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Chapter 15: Radioisotopes and Radiation Protection
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20 Verified Questions
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Sample Questions
Q1) Diagnostic techniques in nuclear medicine typically make use of ___________ radioisotopes as radioactive tracers.
A)long-lived
B)short-lived
C)very weak
D)potentially lethal
Q2) While a patient receiving Iodine-131 (¹³¹I)therapy is hospitalized,a large,_________,rolling lead shield can be positioned between the patient and any attending personnel for protection.
A)up to 25-mm or 1-inch-thick
B)up to 50-mm or 2-inch-thick
C)up to 75-mm or 3-inch-thick
D)up to 150-mm or 6-inch-thick
Q3) In __________,a neutron transforms itself into a combination of a proton and an energetic electron.
A)alpha decay
B)beta decay
C)gamma decay
D)x-ray absorption
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Page 17