ASRT #1 fluoroscopy, radiation
protection and safety
What represents the largest contributors to natural (bacjgriund radiation)? - answer
radon and decay products
what delivers the largest amount of artificial radiation to the public? - answer medical
procedures
medical radiation comes from what 3 sources? - answerthe treatment of benign
diseases, diagnostic exams, and the treatment of malignant deseases.
on average, how many x ray exams does each person recieve? - answer2
radioactivity is expressed using the ___ (Bq), or the ___ (Ci) - answerbecquerel (Bq), or
the Curie (Ci)
radiation exposure units unclude the ___(c/kg) and the ___(R) -
answercoulomb/kilogram, Roentgen
the ___ is a unit of electrostatic charge - answercoulomb
___ is defined as energy imparted to matter by ionizing radiation per unit mass of
irradiated material. - answerabsorbed dose
the measurement of absorbed dose is expressed in ___ or ___. - answergray (Gy) or
rad
___ gy equals ___ rad, and ___ rad equals ___ Gy - answer1gy = 100rad, 1rad =
0.01Gy
dose equivalent is a measeurement used to indicate the biological damage to living
tissue from an absorbed radiation dose. - answer
dose equivalent is expressed in ___ - answerseivert, SV
1 sv = ___ rem - answer100 rem
effective dose is expressed in ___ - answermSv
radiation doses can be described as ___ or ___. - answeracute or chronic
, acute radiation dose is ___ Gy or ___ rad and is delivered to the whole body during a
short period of time, causing observable biological effects within hours to weeks -
answer0.1 Gy, or 10 rad
___ radiation doses are relatively small amounts of radiation that are delivered over a
long period of time. - answerchronic
late effects can be catagorized as ___ or___. - answersomatic or genetic
somatic is effects that occur ___ - answerwithin in an exposed individual
What is the primary risk from the low radiation doses received in a medical or an
occupational setting? - answer
genetic effects are observed in ___ ___. - answerfuture generations
somatic effects are classified as either ___ or ___, based on the rate at which the dose
received. - answeracute or delayed
somatic effects can be defined as ___ or ___. - answerstochastic (probalistic, random in
nature), or nonstochastic (deterministic)
a radiation protection program reduces ___ radiation risk for nonradiation workers and
helps prevent ___ radiation risk for the occupational worker. - answerstochastic ,
nonstochastic
Acute radiation syndrome invludes what 3 effects? - answerBone marrow syndrome, GI
tract syndrome, or CNS syndrome
examples of stochastic radiation effects include what 3 things? - answerinduced
cancers, carcinogenesis, hereditary effects
___, or ____ effects are defined as an outcome for which severity increases with dose
and there's a threshold. - answernonstochastic, or deterministic,
What are 4 examples of nonstochastic effects? - answererythema, epilation,
desquamation, and radiation induced cataracts.
4 ways to reduce fluoroscopy time are - answer1. stopping pt. exposure when not
viewing the monitor
2.preplanning images
3. avoiding redundant views
4. being aware of the 5 minute time notifications
if a person is 1m away from the pt being fluoroscoped = that person recieves ___% of
the dose - answer0.1%
protection and safety
What represents the largest contributors to natural (bacjgriund radiation)? - answer
radon and decay products
what delivers the largest amount of artificial radiation to the public? - answer medical
procedures
medical radiation comes from what 3 sources? - answerthe treatment of benign
diseases, diagnostic exams, and the treatment of malignant deseases.
on average, how many x ray exams does each person recieve? - answer2
radioactivity is expressed using the ___ (Bq), or the ___ (Ci) - answerbecquerel (Bq), or
the Curie (Ci)
radiation exposure units unclude the ___(c/kg) and the ___(R) -
answercoulomb/kilogram, Roentgen
the ___ is a unit of electrostatic charge - answercoulomb
___ is defined as energy imparted to matter by ionizing radiation per unit mass of
irradiated material. - answerabsorbed dose
the measurement of absorbed dose is expressed in ___ or ___. - answergray (Gy) or
rad
___ gy equals ___ rad, and ___ rad equals ___ Gy - answer1gy = 100rad, 1rad =
0.01Gy
dose equivalent is a measeurement used to indicate the biological damage to living
tissue from an absorbed radiation dose. - answer
dose equivalent is expressed in ___ - answerseivert, SV
1 sv = ___ rem - answer100 rem
effective dose is expressed in ___ - answermSv
radiation doses can be described as ___ or ___. - answeracute or chronic
, acute radiation dose is ___ Gy or ___ rad and is delivered to the whole body during a
short period of time, causing observable biological effects within hours to weeks -
answer0.1 Gy, or 10 rad
___ radiation doses are relatively small amounts of radiation that are delivered over a
long period of time. - answerchronic
late effects can be catagorized as ___ or___. - answersomatic or genetic
somatic is effects that occur ___ - answerwithin in an exposed individual
What is the primary risk from the low radiation doses received in a medical or an
occupational setting? - answer
genetic effects are observed in ___ ___. - answerfuture generations
somatic effects are classified as either ___ or ___, based on the rate at which the dose
received. - answeracute or delayed
somatic effects can be defined as ___ or ___. - answerstochastic (probalistic, random in
nature), or nonstochastic (deterministic)
a radiation protection program reduces ___ radiation risk for nonradiation workers and
helps prevent ___ radiation risk for the occupational worker. - answerstochastic ,
nonstochastic
Acute radiation syndrome invludes what 3 effects? - answerBone marrow syndrome, GI
tract syndrome, or CNS syndrome
examples of stochastic radiation effects include what 3 things? - answerinduced
cancers, carcinogenesis, hereditary effects
___, or ____ effects are defined as an outcome for which severity increases with dose
and there's a threshold. - answernonstochastic, or deterministic,
What are 4 examples of nonstochastic effects? - answererythema, epilation,
desquamation, and radiation induced cataracts.
4 ways to reduce fluoroscopy time are - answer1. stopping pt. exposure when not
viewing the monitor
2.preplanning images
3. avoiding redundant views
4. being aware of the 5 minute time notifications
if a person is 1m away from the pt being fluoroscoped = that person recieves ___% of
the dose - answer0.1%
