Diagnostic Imaging Procedures
Practice Exam
Course Introduction
This course provides an in-depth exploration of diagnostic imaging procedures commonly used in medical practice, including X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, and nuclear medicine techniques. Students will learn the principles underlying each imaging modality, the indications and contraindications for their use, patient preparation and positioning, as well as the interpretation of typical images for a variety of clinical conditions. Emphasis is placed on understanding safety standards, radiation protection, and the integration of imaging findings into patient diagnosis and management. Practical sessions and case studies help develop the technical and analytical skills essential for proficient practice in diagnostic imaging.
Recommended Textbook
Radiation Protection in Medical Radiography 8th Edition by Statkiewicz Sherer
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15 Chapters
366 Verified Questions
366 Flashcards
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Page 2
Chapter 1: Introduction to Radiation Protection
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23 Verified Questions
23 Flashcards
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Sample Questions
Q1) Regarding exposure to ionizing radiation,patients who are educated to understand the medical benefit of an imaging procedure are more likely to
A)assume a small chance of biologic damage but not suppress any radiation phobia they may have.
B)cancel their scheduled procedure because they are not willing to assume a small chance of biologic damage.
C)suppress any radiation phobia but not risk a small chance of possible biologic damage.
D)suppress any radiation phobia and be willing to assume a small chance of possible biologic damage.
Answer: D
Q2) What unit is used to measure radiation exposure in the metric International System of Units?
A)Coulomb per kilogram
B)Milligray
C)Millisievert
D)Sievert
Answer: A
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Chapter 2: Radiation: Types, Sources, and Doses Received
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) When exposed to high radon levels in the home,which of the following groups of people have the highest risk of developing lung cancer?
A)Teenagers
B)Adults from 20 to 30 years of age
C)Nonsmokers
D)Smokers
Answer: D
Q2) As a result of technologic advances since the 1970s and strict regulations imposed within the United States by the FDA regarding consumer products containing radioactive material,the radiation exposure of the general public from such produces may now be considered
A)substantial.
B)moderate.
C)very slight.
D)negligible.
Answer: D
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Chapter 3: Interaction of X-Radiation With Matter
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25 Verified Questions
25 Flashcards
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Sample Questions
Q1) Annihilation radiation is used in which of the following modalities?
A)Computed tomography
B)Digital mammography
C)Positron emission tomography
D)Computed radiography
Answer: C
Q2) Which of the following terms refers to the radiation that occurs when an electron spontaneously drops down from an outer shell of an ionized atom to fill a vacancy in an inner shell of that atom?
A)Characteristic photon,or characteristic x-ray
B)Bremsstrahlung
C)Photoelectric radiation
D)Primary radiation
Answer: A
Q3) The symbol Z indicates
A)atomic number of an atom.
B)atomic weight of an atom.
C)fluorescent yield.
D)the number of vacancies in an atomic shell.
Answer: A
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Chapter 4: Radiation Quantities and Units
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23 Verified Questions
23 Flashcards
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Sample Questions
Q1) Which of the following is essentially the sum total of air kerma over the exposed area of the patient's body surface?
A)Absorbed dose
B)Dose area product
C)Effective dose
D)Equivalent dose
Q2) Beta particles are actually
A)gamma rays.
B)high-speed electrons.
C)protons.
D)x-rays.
Q3) Who was the first American radiation worker to die from radiation-induced cancer in October of 1904?
A)Thomas A.Edison
B)Wilhelm C.Roentgen
C)Clarence Madison Dally
D)Marie Curie
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Chapter 5: Radiation Monitoring
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25 Flashcards
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Sample Questions
Q1) An ionization chamber connected to an electrometer is a device that can measure
A)electromagnetic force.
B)tiny electric currents with high precision and accuracy.
C)potential difference.
D)Voltage in an x-ray machine circuit.
Q2) Which of the following is a disadvantage of the optically stimulated dosimeter?
A)Exposure not determinable on the day of occurrence without an in-house reader
B)Mechanical shock can cause false high reading.
C)No permanent,legal record of exposure
D)Not cost-effective for large numbers of personnel
Q3) The optically stimulated luminescence (OSL)dosimeter is "read out" by using a (an) A)densitometer.
B)ionization chamber.
C)thermoluminescent analyzer.
D)laser light at selected frequencies.
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Chapter 6: Overview of Cell Biology
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25 Flashcards
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Sample Questions
Q1) Which of the following are compounds called purines?
1)Adenine and cytosine
2)Adenine and guanine
3)Adenine and thymine
A)1 only
B)2 only
C)3 only
D)1,2,and 3
Q2) What should the constant core temperature of the human body be?
A)28° C
B)37° C
C)43° C
D)57° C
Q3) The cell components that contain the centrioles are the A)centrosomes.
B)Golgi apparatus and mitochondria.
C)lysosomes.
D)ribosomes.
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Chapter 7: Molecular and Cellular Radiation Biology
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Sample Questions
Q1) Which of the following tissues contain cells that do not divide?
1)Epithelial tissue
2)Muscle tissue
3)Nervous tissue in an adult
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Q2) Because the master molecule is unique in any given cell,no similar molecules in the cell are available to replace it; if a critical location on the master molecule is a target receiving multiple hits from ionizing radiation,the master molecule may be inactivated.If this occurs,what is the consequence for the affected cell?
A)Loss of all intracellular fluid
B)Increased pressure on the cell membrane leading to immediate rupture
C)Disruption of cell chemistry only
D)Normal cell function will cease,and the cell will die.
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Chapter 8: Early Tissue Reactions and Their Effects on Organ Systems
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Sample Questions
Q1) Attempts have been made to measure chromosome aberrations after diagnostic x-ray imaging procedures
A)and these studies have been very successful in measuring the number of chromosome aberrations that occurred.
B)but successful results have not been achieved in these studies.
C)but these studies have only been moderately successful in measuring the number of chromosome aberrations that occurred.
D)these studies have only been minimally successful in measuring the number of chromosome aberrations that occurred.
Q2) In 1898,after sustaining severe burns attributed to radiation exposure,this Boston dentist began investigating the hazards of radiation exposure and became the first known determined advocate of radiation protection
A)Marie Curie.
B)Clarence Madison Dally.
C)Wilhelm Conrad Roentgen.
D)William Herbert Rollins.
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Chapter 9: Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems
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Sample Questions
Q1) After the Chernobyl disaster in 1986,an attempt was made to prevent thyroid cancer in Poland and some other countries,resulting from the accidental overdose of iodine-131._______________ was administered to children as a substitute to block the gland's uptake of iodine-131.
A)Potassium bromide
B)Sodium chloride
C)Sodium bicarbonate
D)Potassium iodide
Q2) Which of the following are sources of low-level radiation exposure?
1)X-rays and radioactive materials used for diagnostic purposes.
2)Employment-related exposure in medicine and industry.
3)Natural background radiation.
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 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) Which of the following statements is true?
A)Medical imaging personnel almost always receive equivalent doses that are close to the annual occupational effective dose limit.
B)Medical imaging personnel always receive equivalent doses that are close to the annual occupational effective dose limit.
C)Medical imaging personnel hardly ever receive equivalent doses that are close to the annual occupational effective dose limit.
D)Medical imaging personnel absolutely never receive equivalent doses that are close to the annual occupational effective dose limit.
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Chapter 11: Equipment Design for Radiation Protection
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Sample Questions
Q1) To visualize smaller and lower contrast objects during interventional procedures,high level control fluoroscopy uses exposure rates that are ____________ those normally used in routine fluoroscopy.
A)higher than B)lower than
C)the same as
D)None of the above,because smaller and lower contrast objects cannot be visualized by fluoroscopy during interventional procedures.
Q2) 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
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Chapter 12: Management of Patient Radiation Dose During Diagnostic X-Ray Procedures
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Sample Questions
Q1) Of the following radiologic procedures,which is (are)considered nonessential?
1)A chest x-ray examination automatically scheduled on admission to the hospital
2)Lumbar spine x-ray examination as part of a preemployment physical
3)Whole-body computed tomography (CT)screening
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Q2) Analysis of an imaging department's repeats rate
1)provides valuable information for process improvement.
2)helps minimize patient exposure.
3)improves overall performance of the department.
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 13: Special Considerations on Safety in Computed
Tomography and Mammography
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Sample Questions
Q1) The movement or advancement of the patient couch is known as A)optimization.
B)iterative reconstruction.
C)tube current modulation.
D)table increment.
Q2) In the early 2000s various publications calculated individual and population risks of cancer from CT based upon risk estimates from studies of which of the following groups of people?
A)Atomic bomb survivors
B)Early radiologists and radiographers
C)Patients undergoing treatment for thyroid cancer
D)The general public who were exposed to natural background radiation
Q3) In mammography maintaining and enhancing subject contrast is A)not important.
B)minimally important.
C)of paramount importance for all patients.
D)only important for patients with dense breasts.
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Page 15
Chapter 14: Management of Imaging Personnel Radiation
Dose During X-Ray Procedures
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Sample Questions
Q1) The maximum weekly permitted equivalent dose for a controlled area must not exceed
A)1 mSv.
B)100 mSv.
C)20 mSv.
D)2 mSv.
Q2) Which part(s)of a diagnostic x-ray unit should not be touched while a radiographic exposure is in progress?
A)Control panel
B)Exposure switch
C)Radiographic table
D)Tube housing,collimator,and high-tension cables
Q3) To ensure that the lifetime risk of occupationally exposed persons remains acceptable,an additional recommendation is that the lifetime effective dose in mSv should not exceed
A)the occupationally exposed person's age in years.
B)5 times the occupationally exposed person's age in years.
C)10 times the occupationally exposed person's age in years.
D)20 times the occupationally exposed person's age in years.
Page 16
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Chapter 15: Radioisotopes and Radiation Protection
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Sample Questions
Q1) Iodine-125 (¹² I)in the form of titanium-encapsulated cylindrical seeds has been used quite extensively since 2000 to give a tumoricidal radiation equivalent dose for
A)malignant brain tumors.
B)malignant breast tumors.
C)malignant lung tumors.
D)prostate cancers that are confined within the prostate gland.
Q2) Radioiodide tablets that dissolve in the bloodstream permit an escape of some radioactivity through 1)the pores of the skin.
2)urination.
3)vomiting in some special cases.
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
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