Nuclear medicine question and answers graded A+ 2023 already passed

Nuclear medicine question and answers graded A+ 2023 already passedHistorical Development - correct answer 1803- John Dalton Considered the father of the modern theory of atoms and molecules 1895- Wilhelm Roentgen Discovered x-ray 1896- Henri Becquerel Discovered naturally occurring radioactive substances 1898- Marie Curie Discovered two new elements in the uranium ore 1958- Hal Anger Introduced Gamma camera 1960- David Edwards and Roy Kuhl Single photon emission computed tomography (SPECT) camera 1980s SPECT imaging became standard practice 1923- George de Hevesy Considered the father of Nuclear Medicine 1931- Ernest Lawrence Invented the cyclotron device used to produce (man-made) radioactive tracers Nuclear Medicine - correct answer Medical Specialty focuses on the use of radioactive materials for diagnosis, therapy, and medical research. Radiopharmaceuticals - correct answer radioactive drug used for diagnosis or therapy Tracer - correct answer Radioactive isotope used to allow a biological process to be seen Gamma or scintillation camera - correct answer Device that uses the emission of light from a crystal struck by gamma rays to produce an image Positron Emission Tomography (PET) - correct answer -creates transaxial images -Proton=Neutron+ Positron+Neutrino -The positron and neutrino are both ejected from the nucleus -Positron annihilation occurs when a positron interacts with a free electron *** - correct answer A PET gantry may have 30 to 60 rings, each ring has as many as 1000 detectors Functional or Parametric Image - correct answer Image-images that relates anatomical position Nuclide - correct answer Describes an atomic species Isotopes same number of protons and electrons but different number of neutrons Neutron-to-Proton Ratio - correct answer -Determines stability of atom -At certain ratios atoms are unstable Spontaneous Decay - correct answer Process that occurs when atoms attempt to regain stability Decay schemes - correct answer Created to show how parent nuclide decays to daughter or ground state Unique to each radionuclide Half-life Radionuclides - correct answer -Produced in reactors or particle accelerators -Very long half-lives Thousands of years Technetium-99 (99mTc) - correct answer -Most commonly used and produced in generators -Generators make available Short-lived daughters Technetium-99 (99mTc) -Molybdenum-99 (99Mo) Radiopharmaceuticals - correct answer Two components 1. Radionuclide 2. Pharmaceutical