Nuclear Medicine Board review EXAM
what agency is responsible for regulation of the purchase, receipt, use, and
disposal of radioactive materials - CORRECT ANSWER U.S Nuclear Regulatory
Commission (NRC)
a state that accepts responsibility for the regulation of all radioactive materials -
COR...
what agency is responsible for regulation of the purchase, receipt, use, and
disposal of radioactive materials - CORRECT ANSWER U.S Nuclear Regulatory
Commission (NRC)
a state that accepts responsibility for the regulation of all radioactive materials -
CORRECT ANSWER Agreement State
Which facilities in agreement states are still regulated by the NRC? - CORRECT
ANSWER Federal facilities (ex. VA hospitals and military installations)
How is authorized use of radioactive material in humans granted by the NRC/state
agency - CORRECT ANSWER A facility license
who are responsible for supervising individuals working with radioactive material,
determining radiation safety procedures and establishing dosage activity ranges -
CORRECT ANSWER Authorized Users
what agency controls the packaging and interstate movement of hazardous
materials including radioactivity - CORRECT ANSWER U.S. Department of
Transportation (DOT)
type of package adequate for normal transport - CORRECT ANSWER Type A
,type of package that is more accident resistant and is used for very large
quantities of radioactive materials - CORRECT ANSWER Type B
the dose rate measured at 1 meter from the surface of the package and must
appear on the label - CORRECT ANSWER transport index
no more than 0.5 mR/hr at contact and no detectable radioactivity at 1 meter -
CORRECT ANSWER White I
no more that 50 mR/hr at contact and no more than 1 mR/hr at 1 meter -
CORRECT ANSWER Yellow II
no more than 200 mR/hr at contact and no more than 10 mR/hr at 1 meter -
CORRECT ANSWER Yellow III
what agency regulates and monitors the manufacture, distribution, safety, and
effectiveness of radiopharmaceuticals - CORRECT ANSWER U.S. Food and Drug
Administration (FDA)
what are the only approved radiopharmaceuticals that can be distributed for sale
in the US - CORRECT ANSWER drugs that have new drug authorization (NDA)
a drug that is under investigation by the FDA and may only be used on patients
under very controlled conditions - CORRECT ANSWER investigational new drug
(IND)
what must a patient receive prior to receiving an IND - CORRECT ANSWER an
informed written consent
,factors in reducing radiation exposure - CORRECT ANSWER time, distance,
shielding
equation for total radiation dose for amount of exposure time - CORRECT
ANSWER total dose=(dose rate)(time)
the radiation dose rate from a small-volume radiation source varies inversely with
the square of the distance from the source is known as - CORRECT ANSWER
inverse square law
when doubling distance from a source how much is dose rate reduced - CORRECT
ANSWER 1/4 the original
when distance from source is halved how much is the dose rate increased -
CORRECT ANSWER 4 times the original
equation for the inverse square law - CORRECT ANSWER (I1)(D1)^2=(I2)(D2)^2
I1=dose rate at distance D1 from source and I2 is dose rate at distance D2 from
source
shielding that absorbs beta particles - CORRECT ANSWER plastic
what should not be used on beta particles such as P-32 and Sr-89 - CORRECT
ANSWER lead sheilding
, why should lead shielding not be used on P-32 or Sr-89 - CORRECT ANSWER it
will cause bremsstrahlung radiation
radiation that results from the deceleration of the beta particles as they approach
the nuclei of the lead atoms in the sheild - CORRECT ANSWER bremsstrahlung
what happens when beta particles slow down - CORRECT ANSWER lose energy
and and are released as xrays
shielding used to reduce x and gamma rays - CORRECT ANSWER lead, leaded
glass, and tungsten
the ability of a material to absorb/attenuate x and gamma rays and the thickness
of material that id required to reduce radiation intensity to half its original -
CORRECT ANSWER half-value layer (HVL)
types of dosimeters - CORRECT ANSWER film badges, thermoluminescent
dosimeter, optically stimulated luminescence dosimeter, pocket ionization
chambers
dosimeter that has strip of film between a set of filters that can assess the energy
range and penetration of radiation and can also be exposed to beta particles and
low energy photons. can measure 0.1 mSv-several SV of radiation. Should be
changed monthly. - CORRECT ANSWER film badges
dosimeter that uses lithium fluoride crystals that emits a quantity of light
proportional to the amount of radiation absorbed, more expensive but not
effected by head or environmental changes, changed 2-3 months - CORRECT
ANSWER thermoluminescent
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