Nuclear Medicine Questions And
Answers With Verified Solutions Already
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The nuclear stability of an element is principally determined by the
a. number of valence electrons. c. neucleon to electron ratio.
b. neutron to proton ratio. d. atomic number. - ANSWER✔✔ b. neutron to proton
ratio.
The radioactive elements Carbon-12, Carbon-13 and Carbon-14 are ______ to each
other
a. isobars c. isotopes
b. isomers d. isotones - ANSWER✔✔ c. isotopes
In order to achieve nuclear stability, a radionuclide may emit
a. beta particles. c. positrons.
b. gamma photons. d. all of the above - ANSWER✔✔ d. all of the above
The unit of radioactivity commonly used in nuclear medicine is the
a. Becquerel. c. Tesla.
b. Curie. d. Coulomb. - ANSWER✔✔ b. Curie.
A milliCurie is
a. abbreviated as mCi. c. 37 MBq.
b. 3922 counts per second. d. all of the above - ANSWER✔✔ d. all of the above
, The time it takes for a radioactive nucleus to decay to 1/2 its original activity level
is termed its
a. half-value layer. c. inverse decay quotient.
b. half-life. d. decay scheme. - ANSWER✔✔ b. half-life.
The physical half-life of technetium-99 is approximately
a. 110 minutes. c. 6 hours.
b. 2 hours. d. 73 hours. - ANSWER✔✔ c. 6 hours.
The biological half-life of a radionuclide takes into account its
a. physical decay scheme.
b. physical half-life.
c. metabolism within the human body.
d. effective half-life. - ANSWER✔✔ c. metabolism within the human body.
All of the following are true of a radionuclide effective half-life EXCEPT:
a. It takes into account the relationship between physical and biologic half-lives.
b. It is the product of the physical and biologic half-lives divided by the sum of the
physical and biologic half-lives.
c. It is always shorter than either the physical half-life or biologic half-life.
d. It is of little importance as a consideration of radionuclides used for medical
diagnosis. - ANSWER✔✔ d. It is of little importance as a consideration of
radionuclides used for medical diagnosis.
Historically, the discoverer of radioactivity was
a. Pierre and Marie Curie. c. Henry Becquerel.
Answers With Verified Solutions Already
Passed 100% Correct!!!
The nuclear stability of an element is principally determined by the
a. number of valence electrons. c. neucleon to electron ratio.
b. neutron to proton ratio. d. atomic number. - ANSWER✔✔ b. neutron to proton
ratio.
The radioactive elements Carbon-12, Carbon-13 and Carbon-14 are ______ to each
other
a. isobars c. isotopes
b. isomers d. isotones - ANSWER✔✔ c. isotopes
In order to achieve nuclear stability, a radionuclide may emit
a. beta particles. c. positrons.
b. gamma photons. d. all of the above - ANSWER✔✔ d. all of the above
The unit of radioactivity commonly used in nuclear medicine is the
a. Becquerel. c. Tesla.
b. Curie. d. Coulomb. - ANSWER✔✔ b. Curie.
A milliCurie is
a. abbreviated as mCi. c. 37 MBq.
b. 3922 counts per second. d. all of the above - ANSWER✔✔ d. all of the above
, The time it takes for a radioactive nucleus to decay to 1/2 its original activity level
is termed its
a. half-value layer. c. inverse decay quotient.
b. half-life. d. decay scheme. - ANSWER✔✔ b. half-life.
The physical half-life of technetium-99 is approximately
a. 110 minutes. c. 6 hours.
b. 2 hours. d. 73 hours. - ANSWER✔✔ c. 6 hours.
The biological half-life of a radionuclide takes into account its
a. physical decay scheme.
b. physical half-life.
c. metabolism within the human body.
d. effective half-life. - ANSWER✔✔ c. metabolism within the human body.
All of the following are true of a radionuclide effective half-life EXCEPT:
a. It takes into account the relationship between physical and biologic half-lives.
b. It is the product of the physical and biologic half-lives divided by the sum of the
physical and biologic half-lives.
c. It is always shorter than either the physical half-life or biologic half-life.
d. It is of little importance as a consideration of radionuclides used for medical
diagnosis. - ANSWER✔✔ d. It is of little importance as a consideration of
radionuclides used for medical diagnosis.
Historically, the discoverer of radioactivity was
a. Pierre and Marie Curie. c. Henry Becquerel.
