Radiographic Quality Control
Exam Materials
Course Introduction
Radiographic Quality Control is a course designed to impart students with comprehensive knowledge and practical skills necessary for ensuring high standards in medical imaging. The course covers the principles, methodologies, and regulatory requirements associated with quality control in diagnostic radiography. Students learn to evaluate radiographic images, perform equipment testing, analyze quality assurance reports, and implement corrective measures to maintain optimal image quality and patient safety. Emphasis is placed on reducing imaging artifacts, minimizing patient dose, maintaining equipment performance, and complying with professional standards. By the end of the course, students are equipped to play a key role in the consistent delivery of high-quality radiographic services within healthcare settings.
Recommended Textbook
Radiation Protection in Medical Radiography 8th Edition by Mary Alice
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15 Chapters
370 Verified Questions
370 Flashcards
Source URL: https://quizplus.com/study-set/1605
Page 2
Chapter 1: Introduction to Radiation Protection
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25 Verified Questions
25 Flashcards
Source URL: https://quizplus.com/quiz/31856
Sample Questions
Q1) The cardinal principles of radiation protection include which of the following?
1)Time
2)Distance
3)Shielding
A)1 only
B)2 only
C)3 only
D)1,2,and 3
Answer: D
Q2) If a patient asks a radiographer a question about how much radiation he or she will receive from a specific x-ray procedure,the radiographer can
A)respond by using an estimation based on the comparison of radiation received from the x-ray to natural background radiation received.
B)avoid the patient's question by changing the subject.
C)tell the patient that it is unethical to discuss such concerns.
D)refuse to answer the question and recommend that he or she speak with the referring physician.
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) Through which of the following routes can radon enter houses?
1)Crawl spaces under living areas
2)Floor drains and sump pumps
3)Porous cement block foundations
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Answer: D
Q2) Which of the following radiation quantities use the same unit of measure?
1)Effective dose and equivalent dose
2)Exposure and effective dose
3)Absorbed dose and equivalent dose
A)1 only
B)2 only
C)3 only
D)1,2,and 3
Answer: A
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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) The x-ray photon energy required to initiate pair production is
A)0.511 keV.
B)1.022 keV.
C)0.511 MeV.
D)1.022 MeV.
Answer: D
Q2) When an inner electron is removed from an atom in a photoelectric interaction,thus causing an inner-shell vacancy,the energy liberated when this vacancy is filled can be transferred to another electron of the atom,thereby ejecting that electron,instead of emerging from the atom as characteristic radiation.What is this electron called?
A)Auger electron
B)Compton electron
C)Edison electron
D)Sievert electron
Answer: A
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5
Chapter 4: Radiation Quantities and Units
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25 Flashcards
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Sample Questions
Q1) What instrument can be calibrated to read air kerma?
A)Amp meter
B)Coulomb counter
C)Standard,or free-air,ionization chamber
D)Voltmeter
Q2) Who discovered x-rays on November 8,1895?
A)Thomas A.Edison
B)Clarence Madison Dally
C)Louis Harold Gray
D)Wilhelm Conrad Roentgen
Q3) 0.2 Gy equals
A)2 mGy
B)20 mGy
C)200 mGy
D)2000 mGy
Q4) Cataract formation,fibrosis,reduced fertility and sterility are classified as
A)early tissue reactions of ionizing radiation.
B)late tissue reactions of ionizing radiation.
C)hereditary effects of ionizing radiation.
D)stochastic effects of ionizing radiation.
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Chapter 5: Radiation Monitoring
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25 Flashcards
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Sample Questions
Q1) 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.
Q2) When the sensing crystals contained in the thermoluminescent dosimeter are irradiated,which of the following occurs?
A)The protons in the crystalline lattice structure of the LiF molecule absorb energy and are excited to a higher energy level or bands.
B)The neutrons in the crystalline lattice structure of the LiF molecule absorb energy and are excited to a higher energy level or bands.
C)Some of the electrons in the crystalline lattice structure of the LiF molecule absorb energy and are excited to higher energy levels or bands.
D)The electrons freed from the LiF molecule are trapped at a lower energy level or bands.
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Chapter 6: Overview of Cell Biology
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Sample Questions
Q1) Which of the following is/are considered to be acellular tissue?
A)Bone
B)Fat
C)Muscle
D)Hair and nails
Q2) Adenine bonds only with A)cytosine.
B)guanine.
C)hydrogen.
D)thymine.
Q3) Antibodies are protein molecules produced by specialized cells in the bone marrow called
A)B lymphocytes.
B)R lymphocytes.
C)megakaryocytes.
D)oocytes.
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Page 8
Chapter 7: Molecular and Cellular Radiation Biology
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Sample Questions
Q1) OH* + OH* = __________.
A)H O
B)HOH+
C)HOH-
D)H O
Q2) 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
Q3) A biologic reaction is produced by 4 Gyt of a test radiation.It takes 16 Gyt of 250-kVp x-rays to produce the same biologic reaction.What is the relative biologic effectiveness (RBE)of the test radiation?
A)2
B)4
C)8
D)12
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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) Some local tissues suffer immediate consequences from high radiation doses.Examples of such tissues include 1)bone marrow.
2)male and female reproductive organs.
3)skin.
A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)1,2,and 3
Q3) The prodromal stage of acute radiation syndrome is actually the A)initial stage.
B)latent period.
C)manifest illness period.
D)recovery period.
Page 10
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Chapter 9: Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems
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Sample Questions
Q1) Existing data on radiation-induced genetic effects in humans
A)prove conclusively that radiation causes major genetic effects.
B)prove conclusively that radiation causes only minor genetic effects.
C)are both contradictory and inconclusive.
D)prove conclusively that radiation does not cause genetic effects.
Q2) Which of the following late effects caused by exposure to ionizing radiation is considered to be most important?
A)Cataract formation
B)Embryologic or birth defects
C)Cancer
D)None;all are considered to be of equal importance.
Q3) Studies showed that postpartum patients treated with ionizing radiation for relief of mastitis are a group of individuals in whom the results of radiation exposure to healthy breast tissue via scattered radiation indicate that radiation
A)can cause breast cancer.
B)cannot cause breast cancer.
C)can cause breast enlargement.
D)can cause breast shrinkage.
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Chapter 10: Dose Limits for Exposure to Ionizing Radiation
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Sample Questions
Q1) Which of the following terms involves a random effect of ionizing radiation?
A)Early tissue reactions
B)Change in white blood cell count
C)Reddening of the skin
D)Stochastic event
Q2) Epidemiologic studies of atomic bomb survivors exposed in utero have provided conclusive evidence of a dose-dependent increase in the incidence of severe intellectual disability for fetal doses greater than approximately
A)0.1 Sv.
B)0.2 Sv.
C)0.3 Sv.
D)0.4 Sv.
Q3) The effective dose (EfD)limit for the lens of the eye is
A)5 mSv.
B)15 mSv.
C)50 mSv.
D)150 mSv.
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12
Chapter 11: Equipment Design for Radiation Protection
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Sample Questions
Q1) When an exposed computed radiography imaging plate is ready to be processed,an imaging reading unit is used to scan the photostimulable phosphor imaging plate with a helium-neon laser beam.This process results in the emission of violet light that is changed into an electronic signal by a device called a A)charge-coupled device array.
B)photodiode.
C)photomultiplier tube.
D)scintillator.
Q2) The protective tube housing serves as a shield against _____________________ entering the x-ray tube,thereby preventing electric shock while also facilitating cooling of the x-ray tube.
A)the high voltage
B)the low voltage
C)lose inherent filter particles
D)collimator components
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Chapter 12: Management of Patient Radiation Dose During Diagnostic X-Ray Procedures
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25 Flashcards
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Sample Questions
Q1) In the event that a pregnant patient is inadvertently irradiated
A)the radiographer performing the examination should perform the calculations necessary to determine fetal dose.
B)the imaging department manager should perform the calculations necessary to determine fetal dose.
C)the radiation safety officer or the medical physicist should perform the calculations necessary to determine fetal dose.
D)the administrator of the hospital or imaging facility should perform the calculations necessary to determine fetal dose.
Q2) ________________________ are the sensing devices most often used to measure skin dose directly.
A)Thermoluminescent dosimeters
B)A sequence of aluminum equivalent filters of varying thicknesses
C)Lead-impregnated filters
D)Molybdenum and rhodium filters
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Chapter 13: Special Considerations on Safety in Computed
Tomography and Mammography
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Sample Questions
Q1) Filtering refers to changing the projection data before doing the back projections to remove the
A)blurriness.
B)contrast.
C)grayness.
D)scattered radiation.
Q2) 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
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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25 Flashcards
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Sample Questions
Q1) During which of the following x-ray examinations should a radiographer always wear a thyroid shield?
A)Fluoroscopy and x-ray special procedures
B)Routine mobile radiographic procedures
C)General diagnostic radiographic procedures performed in an x-ray room
D)During all digital radiography procedures and computed radiography procedures performed in an x-ray room
Q2) If the peak energy of the x-ray beam is 100 kVp,a protective lead apron must be the equivalent to at least which of the following measures?
A)0.25-mm thickness of lead
B)0.5-mm thickness of lead
C)1.0-mm thickness of lead
D)1.5-mm thickness of lead
Q3) For C-arm devices with similar fields of view,the dose rate to personnel located within a meter of the patient is
A)comparable to that of routine fluoroscopy.
B)far greater than the dose rate of routine fluoroscopy.
C)significantly less than the dose rate of routine fluoroscopy.
D)comparable to that of high-level control fluoroscopy.
Page 16
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Chapter 15: Radioisotopes and Radiation Protection
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Sample Questions
Q1) 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
Q2) Gamma rays differ from x-rays
A)because they are a form of electromagnetic radiation and x-rays are not.
B)because x-rays are a form of electromagnetic radiation and gamma rays are not.
C)only in the method of how they are produced.
D)only because they are of much lower energy.
Q3) During a radiation emergency,the dose limit for individuals engaging in lifesaving activities is
A)50 mSv per event.
B)100 mSv per event.
C)250 mSv per event.
D)500 mSv per event.
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