,Chapter 01: Introduction to Imaging and Radiologic Sciences
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Adler: Introduction to Radiologic and Imaging Sciences and Patient Care, 8th Edition
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MULTIPLE CHOICE +j
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. +j +j
ANS: B +j+j
Radiography is the making of records of internal structures of the body by passage of x-
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rays or gamma rays through the body. These records or images are typically referred to as r
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adiographs.
REF: p. 4 +j
2. Particular care must be taken when using radiation for medical imaging. This is the result o
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f radiation’s ability to create
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a. ionizations
b. radio waves +j
c. sound waves +j
d. thermal changes +j
ANS: A +j+j
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 disrupt
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the composition of matter and are capable of disrupting life processes. Special protection s
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hould be provided to prevent excessive exposure to ionizing radiation.
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REF: p. 3 +j
3. In the diagnosis of patient disease states, physicians can select from an array of medical di
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agnostic modalities. A few of these involve the use of ionizing energy to create a medical i
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mage. If a physician is concerned about the use of ionizing radiation, he or she may choose
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to order any of the following diagnostic modalities EXCEPT
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a. thermograms.
b. medical sonography. +j
c. radiography.
d. magnetic resonance imaging. +j +j
ANS: C +j+j
Radiography involves the use of x- +j +j +j +j +j
rays for the production of medical images. Medical procedures such as thermograms, sonog
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rams, and magnetic resonance scans use nonionizing energy forms and consequently do not
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produce ionizations in human tissue. They are regarded as nonionizing modalities for imagi
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ng and offer excellent alternatives to physicians concerned about radiation exposure to patie
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nts.
, REF: + j + j pp. 3-4 +j
4. The Greek physician Hippocrates is regarded as the father of Western medicine. All of the
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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. +j +j +j +j +j +j
c. importance of closely monitoring a patient’s condition and recovery. +j +j +j +j +j +j +j +j
d. value of diet and exercise and allowing nature to take its course in recovery.
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ANS: B +j+j
The Hippocratic Corpus is writings that they emphasize rational and natural explanations for
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the treatment of disease and reject sorcery and magic. The Hippocratic oath still governs t
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he ethical conduct of physicians today.
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REF: p. 5 +j
5. Throughout the history of medicine, remarkable achievements have been recorded. These
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events have led to our current understanding of the human organism and disease. As thi
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s research continues, much of it will most likely focus on
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a. proper sanitation and public health. +j +j +j +j
b. immunology and the development of vaccines. +j +j +j +j +j
c. germ theory and infection. +j +j +j
d. human genes and genetic engineering. +j +j +j +j
ANS: D +j+j
Although the Human Genome Project is finished, analyses of the data will continue for ma
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ny years. The replacement of faulty genes through gene therapy offers promises of cures for
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a variety of hereditary diseases, and through genetic engineering, important pharmaceutica
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ls continue to be developed. Medical research will continue to focus on the genetic code in
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all cells.
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REF: p. 6 +j
6. Wilhelm C. Roentgen’s discovery of “the x- +j +j +j +j +j +j
ray” is regarded as one of medicine’s most significant achievements. Although his discov
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ery was accidental, his early research was so thorough that no significant findings have be
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en added to his original theories. This in itself is a true tribute to the brilliance of Roentge
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n as a scientist. One of the most famous early images he created was an x-
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ray image of his+j +j +j
a. colon.
b. laboratory assistant’s foot. +j +j
c. wife’s hand. +j
d. kidneys.
ANS: C +j+j
November 8, 1895, is believed by historians to be the day that Roentgen created the famous
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image of the hand of his wife. Through his investigative methods, Roentgen identified the
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properties of x-rays. +j +j
REF: p. 6 +j