Exam (elaborations)
Radiation Safety Video (1)
Radiation Safety Video (1)
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Radiation Safety VideoC. It can penetrate tissue - ANS-Ionizing radiation is useful for diagnostic radiology because:
A. It can harm cells
B. It is of low frequency
C. It can penetrate tissue
D. It is absorbed by lead
C. Anyone exposed to ionizing radiation can have adverse effects - ANS-Choose the TRUE
statement.
A. Only pregnant women are at risk from ionizing radiation exposure
B. The risks of adverse effects from ionizing radiation exposure decrease with increasing dose
C. Anyone exposed to ionizing radiation can have adverse effects
D. There is a minimum (safe) threshold for exposure to ionizing radiation
C. Scatter - ANS-The primary occupational source of ionizing radiation exposure in health care
facilities is:
A. Carelessness
B. Incorrect positioning of equipment
C. Scatter
D. Lack of following radiation protocols
D. Time, distance, and shielding - ANS-The three fundamental principles of radiation safety are:
A. Regulations, protocols, and consistency
B. Measure, protect, and report
C. Aprons, dosimeters, and leaded walls
, D. Time, distance, and shielding
C. Kept as low as reasonably achievable - ANS-Ionizing radiation doses should be:
A. Monitored only if the radiation worker is a minor or is older than 50 years.
B. Administered at the highest level necessary, regardless of a patients' exposure history.
C. Kept as low as reasonably achievable.
D. Monitored only if the radiation worker is pregnant
D. Scatter - ANS-In health care settings, the primary occupational source of radiation exposure
is:
A. Lasers
B. Direct beam radiation
C. MRI scanners
D. Scatter
B. Whenever possible to attenuate radiation - ANS-Lead shielding should be used:
A. Only at the discretion of a surgeon or radiologist
B. Whenever possible to attenuate radiation
C. If a patient or staff person requests it
D. If an ionizing radiation dose to a patient is expected to exceed 20 rem
D. 95% - ANS-A 0.25 mm lead apron will reduce scattered x-rays by approximately:
A. 15%
B. 25%
C. 50%
D. 95%
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