RAD117 Final Review Exam With Complete Solutitons
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 0.67 mCi
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 Transmutation
Which of the following are used in nuclear medicine as diagnostic
radiopharmaceuticals? - ANSWER Xenon-133, Technetium-99
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 (180 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
Palliation is a word that means: - ANSWER Relieving symptons
A radiation therapist is a: - ANSWER Technologist
Radiosensitivity in the context of radiation oncology means that cancer cells are: -
ANSWER Radiosensitive to radiation similar to healthy cells from which they originate
Tolerance in the context of radiation oncology that means: - ANSWER The radiation
treatment can cure, but can also injure or kill healthy tissue
TD5/5 is a way of measuring: - ANSWER Complication rates
Cancer cells are considered more susceptible to ionizing radiation when they are: -
ANSWER Oxygenated
The ratio of the dose required to treat a hypoxic tumor to the dose required to treat the
same tumor under oxygenated conditions defines: - ANSWER OER
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 0.67 mCi
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 Transmutation
Which of the following are used in nuclear medicine as diagnostic
radiopharmaceuticals? - ANSWER Xenon-133, Technetium-99
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 (180 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
Palliation is a word that means: - ANSWER Relieving symptons
A radiation therapist is a: - ANSWER Technologist
Radiosensitivity in the context of radiation oncology means that cancer cells are: -
ANSWER Radiosensitive to radiation similar to healthy cells from which they originate
Tolerance in the context of radiation oncology that means: - ANSWER The radiation
treatment can cure, but can also injure or kill healthy tissue
TD5/5 is a way of measuring: - ANSWER Complication rates
Cancer cells are considered more susceptible to ionizing radiation when they are: -
ANSWER Oxygenated
The ratio of the dose required to treat a hypoxic tumor to the dose required to treat the
same tumor under oxygenated conditions defines: - ANSWER OER
