,Chapter 01: Introduction to Imaging and Radiologic Sciences
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Adler: Introduction to Radiologic and Imaging Sciences and Patient Care, 6th Edition
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MULTIPLE CHOICE g1
1. The use of x-rays to create a medical image on patients is referred to as
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a. electrocardiography.
b. radiography.
c. sonography.
d. magnetic resonance imaging. g1 g1
ANS: B
Radiography is the making of records of internal structures of the body by passage of
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x- rays or gamma rays through the body. These records or images are
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typically referred t o a s radiographs.
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REF: p. 4 g1
2. Particular care must be taken when using radiation for medical imaging. This is the
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result of radiation’s ability to create
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in human tissue and possible biochemical changes g1 g1 g1 g 1 g1 g 1
.
a. ionizations
b. radio waves g1
c. sound waves g1
d. thermal changes g1
ANS: A
Some forms of electromagnetic energy, including x-
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rays, have the ability to ionize atoms in matter. These ionizations have the ability to
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disru pt the composition of matter and are capable of disrupting life processes.
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Special protect
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i on should be provided to prevent excessive exposure to ionizing
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g1 radiation. REF: g1 p. 3 g1
3. In the diagnosis of patient disease states, physicians can select from an array of
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medical diagnostic modalities. A few of these involve the use of ionizing energy to
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create a medi cal image. If a physician is concerned about the use of ionizing
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radiation, he or she may choose to order any of the following diagnostic modalities
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EXCEPT
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a. thermograms.
b. medical sonography. g1
c. radiography.
d. magnetic resonance imaging. g1 g1
ANS: C
Radiography involves the use of x- g1 g 1 g1 g1 g1
rays for the production of medical images. Medical procedures such as thermograms, son
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o grams, and magnetic resonance scans use nonionizing energy forms and consequently d
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o not produce ionizations in human tissue. They are regarded as nonionizing
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modalities f or i maging and offer excellent alternatives to physicians concerned
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about radiation expo sure t o patients.
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, REF: pp. 3-4 g1
4. The Greek physician Hippocrates is regarded as the father of Western medicine.
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All of t he following choices represent his medical beliefs EXCEPT the
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a. use of high ethical standards of conduct.
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b. important medical value of sorcery and witchcraft.
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c. importance of closely monitoring a patient’s condition and recovery.
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d. value of diet and exercise and allowing nature to take its course in recovery.
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ANS: B
The Hippocratic Corpus is writings that they emphasize rational and natural
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explanations f or the treatment of disease and reject sorcery and magic. The
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Hippocratic oath still gove r ns the ethical conduct of physicians today.
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REF: p. 5 g1
5. Throughout the history of medicine, remarkable achievements have been recorded.
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The s e events have led to our current understanding of the human organism and
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disease. A s this research continues, much of it will most likely focus on
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a. proper sanitation and public health.
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b. immunology and the development of vaccines. g1 g1 g1 g1 g1
c. germ theory and infection.
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d. human genes and genetic engineering.
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ANS: D
Although the Human Genome Project is finished, analyses of the data will continue
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for m any years. The replacement of faulty genes through gene therapy offers
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promises of cure s for a variety of hereditary diseases, and through genetic
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engineering, important pharma ceuticals continue to be developed. Medical
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research will continue to focus on the gene ti c code in all cells.
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REF: p. 6 g1
6. Wilhelm C. Roentgen’s discovery of ―the x-
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ray‖ is regarded as one of medicine’s most significant achievements. Although his
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disco very was accidental, his early research was so thorough that no significant
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findings have been added to his original theories. This in itself is a true tribute to
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the brilliance of Ro entgen as a scientist. One of the most famous early
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images he created was an x-
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ray image of his
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a. colon.
b. laboratory assistant’s foot. g1 g1
c. wife’s hand. g1
d. kidneys.
ANS: C
November 8, 1895, is believed by historians to be the day that Roentgen created the
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famo us image of the hand of his wife. Through his investigative methods,
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Roentgen identified the properties of x-rays.
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REF: p. 6 g1