9th Edition By Mary Alice Statkiewicz Sherer; Paula J. Visconti;
E. Russell Ritenour; Kelli Haynes|
The use of radiation in the healing arts did not begin until the
discovery of x-rays in what year? - ANSWER 1895
What is defined as the effective measures employed by
radiation workers to safeguard patients, personnel, and general
public from unnecessary exposure to ionizing radiation? -
ANSWER Radiation protection
The need for safeguarding against significant and continuing
radiation exposure is based on evidence of harmful
_______________. - ANSWER Biologic effects
What is the degree to which the diagnostic study accurately
reveals the presence or absence of disease in the patient? -
ANSWER Diagnostic efficacy
The philosophy of as low as reasonably achievable (ALARA)
should be what part of every health care facility's personnel
radiation control program? - ANSWER Main
What are the three basic principles of radiation protection? -
ANSWER Time, distance and shielding
,Who is responsible for providing the necessary resources and
appropriate environment in which to execute an ALARA
program? - ANSWER Employer
In a hospital setting who is expressly charged by the
administration to be directly responsible for the ALARA
program? - ANSWER Radiation Safety Officer
Radiation refers to ______________energy that passes from
one location to another and can have many manifestations. -
ANSWER kinetic
The amount of energy transferred to electrons by ionizing
radiation is the basic concept for radiation dose. - ANSWER
True
What form of radiation includes alpha and beta particles? -
ANSWER Particulate radiation
Equivalent dose is a radiation __________ used for radiation
protection purposes when a person receives exposure from
various types of ionizing radiation. - ANSWER Quantity
What is a classic example of organic damage that results from
non-negligible exposure to ionizing radiation? - ANSWER
Changes in blood count
, Radon is the __________decay product of radium and is
produced as radium decays in the soil. - ANSWER First
According to the Environmental Protection Agency radon is the
second leading cause of what type of cancer in the United
States? - ANSWER Lung
What was the average dose received by the population living
within a 50-mile radius of the Three Mile Island plant? -
ANSWER 0.08 mSv
What was the amount of radiation released at Chernobyl when
compared to the radioactivity of Hiroshima and Nagasaki
combined? - ANSWER 30-40 times
A diagnostic x-ray beam is produced when a stream of high-
speed __________ bombard a positively charged target. -
ANSWER Electrons
What is the most common method to eliminate the effects of
indirectly transmitted x-ray photons? - ANSWER Air gap
technique & Radiographic grids
What are the two important types of interactions between x-
ray radiation and matter important in diagnostic radiology? -
ANSWER Compton scattering, photoelectric absorption