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Fluoroscopy Radiation Protection and Safety questions and answers
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Fluoroscopy Radiation Protection and Safety questions and answers
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Fluoroscopy: RadiationProtection and Safety
questions and answers
Wilhelm Conrad Roentgen - answer Discovered x-rays in 1895
Who discovered x-rays?
Radon and its decay products - answer What is the largest contributor
of natural (background) radiation exposure
medical procedures - answer What delivers the largest amount of
artificial radiation to the public?
Radon in indoor air - answer What is the second leading cause of lung
cancer in the US after cigarette smoking?
Antoine Henri Becquerel - answer Who discovered radioactivity in
1896?
,the becquerel (Bq) - answer What is the unit for expressing radioactivity
in the International System of Units?
the curie (Ci) - answer What is the non-SI unit for expressing
radioactivity?
Radiation exposure units - answer What are coulomb/kilogram (C/kg)
and the roentgen (R)?
Coulomb - answer What is a unit of electrostatic charge?
The roentgen does not measure energy absorbed or dose - answer true
The roentgen describes how many ion pairs are formed in a given
volume of air when exposed to radiation. - answer true
Absorbed dose - answer defined as the energy imparted to matter by
ionizing radiation per unit mass of irradiated material.
Gray (Gy) - answer The SI unit expressing absorbed dose. Describes the
radiation dose absorbed by tissues following exposure to ionizing
radiation.
rad - answer non-SI, older term unit for absorbed dose
,One Gy equals - answer 100 rad
1 rad equals - answer 0.01 Gy
A 1-Gy dose is equal to - answer 1 joule of radiation energy absorbed
per kg or organ or tissue weight
The Gy is a unit used to measure the dose accumulated from multiple
exposures to any type of ionizing radiation. true or false - answer true
Equal doses of different types of radiation are not equally harmful to
the body. - answer true
The gray or rad is a measure of the relative biological effect on the body.
- answer false
Dose equivalent - answer a measurement used to indicate the biological
damage to living tissue from an absorbed dose.
sievert (Sv) - answer The dose equivalent is expressed in what SI unit?
roentgen equivalent man (rem) - answer What is the conventional unit
to express dose equivalent?
, One Sv equals ___ rem - answer 100
The rem measures _____. - answer radiation energy absorbed by a
person
a chest x-ray delivers a dose of - answer 0.1 mSv
The dose equivalent is an effective measurement in determining
relative harm or risk caused by a given dose of radiation compared with
other types of radiation. true or false - answer true
Effective dose is expressed using ____. - answer mSv
The ______ is averaged over the entire body, allowing for differences in
exposed tissues. - answer effective dose
The annual effective dose from naturally occurring radioactive materials
and cosmic radiation is estimated to be ______. - answer 3 mSv (300
mrem)
The average effective dose for a diagnostic X-ray examination is ___ and
____ for nuclear medicine procedures. - answer .39 mSv and .14 mSv
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