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RAD117 Test 4 Questions And Answers
100% Guaranteed Pass
Radioactivity can be best defined as - Answer✔Breakdown of atomic nuclei
The curie (Ci) is equal to - Answer✔3.7 x 10^10 Bq
The process of one atom becoming another atom by means of radioactive emission (decay) is
called - Answer✔Ionization
Which of the following are used in nuclear medicine as diagnostic radiopharmaceuticals? -
Answer✔Xenon-133, Technetium-99
43 mCi of Gallium-68 (half life = 280 days) is kept in storage in the nuclear medicine
department "hot lab". How much Ga-68 remains after 1,680 days? - Answer✔0.33 mCi
Which of the following radionuclides are isobars? - Answer✔Ni, Co, Fe
Handling of radiopharmaceuticals by nuclear medicine technologists requires that they wear lead
shielding sufficient to protect them from excessive radiation exposure. - Answer✔False
A sign indicating "Caution: Radiation Area" means that a person entering a restricted area can
receive an exposure that is: - Answer✔Greater than 5 mR per hour, but less than 100 mR per
hour
Which of the following pertains to protection practices in the nuclear medicine "hot lab"? -
Answer✔No food or drink consumed
Latex gloves can stop alpha particles. - Answer✔True
The exposure rate at 1 foot (30 cm) from a patient who has been given a radiopharmaceutical is
.15 mR/hour. What is the exposure rate 6 feet (15 cm) from the same patient? - Answer✔.004
mR/hour
The use of personal dosimeters is limited to determining the whole-body dose monitoring only. -
Answer✔False
Radioactive half-life is best defined as the time required for a radionuclide to... -
Answer✔Become half as radioactive
An atomic nucleus acquires a certain particle transforming a proton into a neutron. What is this
particle? - Answer✔Positron
1|Page
RAD117 Test 4 Questions And Answers
100% Guaranteed Pass
Radioactivity can be best defined as - Answer✔Breakdown of atomic nuclei
The curie (Ci) is equal to - Answer✔3.7 x 10^10 Bq
The process of one atom becoming another atom by means of radioactive emission (decay) is
called - Answer✔Ionization
Which of the following are used in nuclear medicine as diagnostic radiopharmaceuticals? -
Answer✔Xenon-133, Technetium-99
43 mCi of Gallium-68 (half life = 280 days) is kept in storage in the nuclear medicine
department "hot lab". How much Ga-68 remains after 1,680 days? - Answer✔0.33 mCi
Which of the following radionuclides are isobars? - Answer✔Ni, Co, Fe
Handling of radiopharmaceuticals by nuclear medicine technologists requires that they wear lead
shielding sufficient to protect them from excessive radiation exposure. - Answer✔False
A sign indicating "Caution: Radiation Area" means that a person entering a restricted area can
receive an exposure that is: - Answer✔Greater than 5 mR per hour, but less than 100 mR per
hour
Which of the following pertains to protection practices in the nuclear medicine "hot lab"? -
Answer✔No food or drink consumed
Latex gloves can stop alpha particles. - Answer✔True
The exposure rate at 1 foot (30 cm) from a patient who has been given a radiopharmaceutical is
.15 mR/hour. What is the exposure rate 6 feet (15 cm) from the same patient? - Answer✔.004
mR/hour
The use of personal dosimeters is limited to determining the whole-body dose monitoring only. -
Answer✔False
Radioactive half-life is best defined as the time required for a radionuclide to... -
Answer✔Become half as radioactive
An atomic nucleus acquires a certain particle transforming a proton into a neutron. What is this
particle? - Answer✔Positron
1|Page
