RAD 211 Nuclear Medicine
Nuclear Medicine is a medical specialty that uses _____ to assess bodily functions
(primarily) and anatomy of the organ or system being studied, and to diagnose and treat
disease. - answer radioactive tracers
Radioactive tracers are aka _____ - answer radiopharmaceuticals
What are the two most common imaging modalities in Nuc med? – answer SPECT
(Single photon emission computed tomography) and PET positron emission
tomography
How are radioactive tracers normally introduced into the body? - answer Injected into
the blood stream, inhaled or swallowed
The radiotracer travels through the area being examined and gives off energy in the
form of _____ which are detected by a gamma or scintillation camera and a computer to
create images of the inside of your body - answergamma rays
True or false: Nuclear medicine imaging provides unique information that often cannot
be obtained using other imaging procedures and only offers the potential to identify
disease in its later stages. - answerFalse (Nuclear medicine imaging provides unique
information that often cannot be obtained using other imaging procedures and offers the
potential to identify disease in its earliest stages)
Who all is involved in a nuc med procedure? - answerNuclear medicine physician, Nuc
med tech, physicist, pharmacist
_____ are unique medicinal formulations containing radioisotopes which are used in
major clinical areas for diagnosis and/or therapy - answerRadiopharmaceuticals
_____ are species of atoms that emit radiation as they undergo radioactive decay
through the emission of alpha particles (α), beta particles (β), or gamma rays (γ). -
answerRadionuclides
True or false: In the presence of disease, a tracer will often be distributed around the
body and/or processed differently. - answerTrue
True or false: Any increased physiological function, such as due to a fracture in the
bone, will usually mean decreased concentration of the tracer - answerFalse (Any
increased physiological function, such as due to a fracture in the bone, will usually
mean increased concentration of the tracer)
, Increased concentration of a tracer results in the appearance of a _____ -
answerhotspot
_____ is a focal increase in radio accumulation or a general increase in radio
accumulation throughout the physiological system - answerhotspot
_____ are a lack of radiation being received or recorded, not producing any image and
resulting in an area of no, or very light density - answercold spots
Radionuclides with shorter half-lives are considered _____ - answerthe daughters
Radionuclides with longer half-lives are considered _____ - answerthe parents
The radionuclides used in nuclear medicine are produced in _____, or _____ -
answerreactors, particle accelerators
What is the half-life of naturally occurring radionuclides? - answerthousands of years
True or false: Naturally occurring radionuclides are suitable for nuc med tests -
answerfalse (Natural radionuclides are unsuitable for nuclear medicine imaging
because of limited availability and the high absorbed dose the patient would receive.
The radionuclides for nuclear medicine are produced in a _____ through nuclear
reactions created between a specific target chemical and high-speed charged particles -
answerparticle accelerator
The most commonly used radionuclide in nuclear medicine is _____ which is produced
in a generator system - answerTechnetium-99 or 99mTc
The generator system uses _____ as the parent - answer99Mo (molybdenum-99)
Because radiopharmaceuticals are administered to patients, they need to be _____ and
_____ - answersterile, pyrogen-free
A radiopharmaceutical generally has two components: a _____ and a _____ -
answerradionuclide, pharmaceutical
After the radiopharmaceutical is administered, the target organ is localized, and the
radiation emitted from it can be detected by imaging instruments, or _____ -
answergamma cameras
What is the desirable photon energy range of a radiopharmaceutical? - answer100keV
and 400keV
True or false: The half-life of the radiopharmaceutical should be greater than the time
required to prepare the material for injection - answerTrue
Nuclear Medicine is a medical specialty that uses _____ to assess bodily functions
(primarily) and anatomy of the organ or system being studied, and to diagnose and treat
disease. - answer radioactive tracers
Radioactive tracers are aka _____ - answer radiopharmaceuticals
What are the two most common imaging modalities in Nuc med? – answer SPECT
(Single photon emission computed tomography) and PET positron emission
tomography
How are radioactive tracers normally introduced into the body? - answer Injected into
the blood stream, inhaled or swallowed
The radiotracer travels through the area being examined and gives off energy in the
form of _____ which are detected by a gamma or scintillation camera and a computer to
create images of the inside of your body - answergamma rays
True or false: Nuclear medicine imaging provides unique information that often cannot
be obtained using other imaging procedures and only offers the potential to identify
disease in its later stages. - answerFalse (Nuclear medicine imaging provides unique
information that often cannot be obtained using other imaging procedures and offers the
potential to identify disease in its earliest stages)
Who all is involved in a nuc med procedure? - answerNuclear medicine physician, Nuc
med tech, physicist, pharmacist
_____ are unique medicinal formulations containing radioisotopes which are used in
major clinical areas for diagnosis and/or therapy - answerRadiopharmaceuticals
_____ are species of atoms that emit radiation as they undergo radioactive decay
through the emission of alpha particles (α), beta particles (β), or gamma rays (γ). -
answerRadionuclides
True or false: In the presence of disease, a tracer will often be distributed around the
body and/or processed differently. - answerTrue
True or false: Any increased physiological function, such as due to a fracture in the
bone, will usually mean decreased concentration of the tracer - answerFalse (Any
increased physiological function, such as due to a fracture in the bone, will usually
mean increased concentration of the tracer)
, Increased concentration of a tracer results in the appearance of a _____ -
answerhotspot
_____ is a focal increase in radio accumulation or a general increase in radio
accumulation throughout the physiological system - answerhotspot
_____ are a lack of radiation being received or recorded, not producing any image and
resulting in an area of no, or very light density - answercold spots
Radionuclides with shorter half-lives are considered _____ - answerthe daughters
Radionuclides with longer half-lives are considered _____ - answerthe parents
The radionuclides used in nuclear medicine are produced in _____, or _____ -
answerreactors, particle accelerators
What is the half-life of naturally occurring radionuclides? - answerthousands of years
True or false: Naturally occurring radionuclides are suitable for nuc med tests -
answerfalse (Natural radionuclides are unsuitable for nuclear medicine imaging
because of limited availability and the high absorbed dose the patient would receive.
The radionuclides for nuclear medicine are produced in a _____ through nuclear
reactions created between a specific target chemical and high-speed charged particles -
answerparticle accelerator
The most commonly used radionuclide in nuclear medicine is _____ which is produced
in a generator system - answerTechnetium-99 or 99mTc
The generator system uses _____ as the parent - answer99Mo (molybdenum-99)
Because radiopharmaceuticals are administered to patients, they need to be _____ and
_____ - answersterile, pyrogen-free
A radiopharmaceutical generally has two components: a _____ and a _____ -
answerradionuclide, pharmaceutical
After the radiopharmaceutical is administered, the target organ is localized, and the
radiation emitted from it can be detected by imaging instruments, or _____ -
answergamma cameras
What is the desirable photon energy range of a radiopharmaceutical? - answer100keV
and 400keV
True or false: The half-life of the radiopharmaceutical should be greater than the time
required to prepare the material for injection - answerTrue
