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