PEARSON COMPREHENSIVE CH. 48 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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Course
GXMO
Institution
GXMO
PEARSON COMPREHENSIVE CH. 48 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
Radiologist - ANSWER A physician specializing in radiology.
Radiographer or radiologic technologist - ANSWER is involved in making diagnostic radiographs' or X-rays.
Radiographer or radiologic technologist (education requ...
PEARSON COMPREHENSIVE CH. 48
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Radiologist - ANSWER A physician specializing in radiology.
Radiographer or radiologic technologist - ANSWER is involved in making diagnostic radiographs' or X-
rays.
Radiographer or radiologic technologist (education requirement) - ANSWER Requires advanced schooling
and training experience. Must graduate from a 2 or 4 year degree program in radiology and pass a
national registration examination administered by the American Registry of Radiologic Technologies.
Radiographer or radiologic technologist (duties) - ANSWER Include positioning patients for radiographic
procedures; determining the proper voltage, current, and exposure time for each X-ray; adjusting
radiographic equipment; developing the film; and assisting the radiologist with special procedures.
Radiology - ANSWER the branch of medicine that uses radioactive substances, or matter that gives off
radiation (radiant energy), and various techniques to visualize the internal structures of the body for the
diagnosis and treatment of disease.
Discoverer of X-rays - ANSWER Wilhelm Konrad Roentgen in 1895.
Radiographs - ANSWER Are produced by projecting X-rays through organs or structures of the body onto
photographic film.
Radioaque - ANSWER Allow fewer X-rays to pass through. Bones appears light on the film, and
radiolucent tissue like lungs leave a shadowy, dark image.
Radiolucent - ANSWER Permitting greater penetration of X-rays.
List characteristics of X-rays - ANSWER * Penetrate substances of different densities to varying degree.
, * Cause ionization of the substances through which they pass. Ionization is the process that causes the
gain or loss of electrons from a neutral atom. Loss of electron = positive charge; gain of electron =
negative charge.
* Cause fluorescence of certain substances. Internal structures show up dark on a glowing screen as X-
rays pass through, allowing physicians to visualize structures in motion.
* Travel in a straight line so the X-ray beam can be directed at a specific area.
* Destroy body cells and be used to kill cancer cells.
Contrast medium - ANSWER Is a substance that enhances visibility of the tissue or structure being
studied. May be liquids, powders, or gases. Administered orally, by injection, or by enema. Commonly
used include barium sulfate, iodinated compounds, air, and carbon dioxide.
Positive contrast medium - ANSWER Is a radiopaque substance that does not allow the passage of X-rays,
making the affected tissue or structure appear white on X-ray images. Include barium sulfate and iodine.
Barium Sulfate - ANSWER is a chalky compound that is mixed with water and flavoring to the right
consistency for a patient to drink or for a technician to administer as an enema. Frequently used in exam
of GI tract.
Iodine - ANSWER Compounds are employed for thyroid studies (the thyroid gland), pyelograms (the
urinary tract), angiograms (blood flow through arteries and veins), and cholecystograms (the
gallbladder).
Negative contrast medium - ANSWER Is a radiolucent substance that allows X-rays to pass through more
easily, making the affected tissue or structure appear dark or shadowy on X-ray images. Include air,
carbon dioxide, and other gases.
Gas and air - ANSWER Can result in severe headaches following procedures such as myelograms. Have
largely been replaced with the use of magnetic resonance imaging (MRI).
Role of the medical assistant in diagnostic imaging - ANSWER Schedule the procedure ordered by the
physician, educate the patient about the procedure, explain beforehand the preparation is needed, and
inform patient how long the entire process will take.
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