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Adler: Introduction to Radiologic and Imaging Sciences and Patient Care, 6th Edition
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MULTIPLE CHOICE g
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. g g
ANS: B
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
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referred t o a s radiographs.
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REF: p. 4 g
2. Particular care must be taken when using radiation for medical imaging. This is the result
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of radiation’s ability to create
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in human tissue and possible biochemical changes g g g g g g
.
a. ionizations
b. radio waves g
c. sound waves g
d. thermal changes g
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 disru
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pt the composition of matter and are capable of disrupting life processes. Special
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protect
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i on should be provided to prevent excessive exposure to ionizing radiation.
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REF: p. 3
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3. In the diagnosis of patient disease states, physicians can select from an array of medical
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diagnostic modalities. A few of these involve the use of ionizing energy to create a medi
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cal image. If a physician is concerned about the use of ionizing radiation, he or she may
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choose to order any of the following diagnostic modalities EXCEPT
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a. thermograms.
b. medical sonography. g
c. radiography.
d. magnetic resonance imaging. g g
ANS: C
Radiography involves the use of x- g g g g g
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 modalities f
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or i maging and offer excellent alternatives to physicians concerned about radiation expo
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sure t o patients.
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, REF: pp. 3-4 g
4. The Greek physician Hippocrates is regarded as the father of Western medicine. All of
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g 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. g g g g g g
c. importance of closely monitoring a patient’s condition and recovery. g g g g g g g g
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 Hippocratic
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oath still gove r ns the ethical conduct of physicians today.
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REF: p. 5 g
5. Throughout the history of medicine, remarkable achievements have been recorded. The
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gs e events have led to our current understanding of the human organism and disease. A
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g s this research continues, much of it will most likely focus on
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a. proper sanitation and public health. g g g g
b. immunology and the development of vaccines. g g g g g
c. germ theory and infection. g g g
d. human genes and genetic engineering. g g g g
ANS: D
Although the Human Genome Project is finished, analyses of the data will continue for m
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any years. The replacement of faulty genes through gene therapy offers promises of
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cure s for a variety of hereditary diseases, and through genetic engineering, important
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pharma ceuticals continue to be developed. Medical research will continue to focus
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on the gene ti c code in all cells.
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REF: p. 6 g
6. Wilhelm C. Roentgen’s discovery of ―the x- g g g g g g
ray‖ is regarded as one of medicine’s most significant achievements. Although his disco
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gvery was accidental, his early research was so thorough that no significant findings have
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gbeen added to his original theories. This in itself is a true tribute to the brilliance of Ro
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gentgen as a scientist. One of the most famous early images he created was an
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gx-
ray image of his
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a. colon.
b. laboratory assistant’s foot. g g
c. wife’s hand. g
d. kidneys.
ANS: C
November 8, 1895, is believed by historians to be the day that Roentgen created the famo
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us image of the hand of his wife. Through his investigative methods, Roentgen identified
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the properties of x-rays.
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REF: p. 6 g
, 7. A valuable x-ray procedure used to diagnose a myocardial infarction is
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a. mammography.
b. myelography.
c. arthrography.
d. coronary arteriography. g
ANS: D
Coronary arteriography is an extremely valuable tool in diagnosing atherosclerosis, which
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can block the coronary arteries and cause a heart attack (myocardial infarction). By
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way o f a special catheter with a balloon tip, effective treatment of atherosclerosis is
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possible. T his treatment of a blocked blood vessel is termed angioplasty. Angioplasty is
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used to tr eat patients without having to use invasive open-heart surgery.
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REF: p. 8 g
8. All of the following are true of the diagnostic procedure of mammography EXCEPT
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a. it is very valuable for the detection of early breast cancers.
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b. the procedures may be performed using a general radiographic machine.
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c. radiographers need to be specially trained in order to perform mammography. g g g g g g g g g g
d. radiographers must be certified by the ARRT to qualify for the mammograp g g g g g g g g g g g
h y examination.
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ANS: B
Special breast imaging centers have been built to accommodate the demand for mammogr
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aphy procedures. Equipment and supplies, such as a specially designed x-
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ray tube and high- resolution digital imaging detectors, are used to create high-
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quality breast images. Mammography cannot be performed using general x-
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ray equipment. REF: p. 8
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9. To study the blood vessels of the brain, kidneys, liver, and other organs, contrast materia
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gl is administered into these vessels by using
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a. catheters.
b. stents.
c. balloons.
d. none of the above. g g g
ANS: A
Angiography is the term for radiologic examination of the blood vessels after g g g g g g g g g g g
injection o f a contrast medium. Most often, the contrast material is injected through a
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catheter, w hic h can be directed to a variety of major arteries or veins for visualization
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of these stru ctu res.
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REF: p. 8 g
10. Radiologic science continues to be one of the most exciting professions in medicine.
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An imaging modality that uses no ionizing radiation and the energy of radio waves a
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nd magnetic fields is
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a. nuclear imaging. g
b. thermography.
c. CVIT.