Nuclear Medicine question and answers graded A+ 2023

Nuclear Medicine question and answers graded A+ 2023Isotope - correct answer Element with a different number of neutrons than the original, stable form. Radioactivity - correct answer Atoms that are abnormally excited with an unstable nucleus Radioactive decay - correct answer Spontaneous emission of particles and energy as an ato transforms themselves into other atoms (isotope breaking down to its original form) Half-life - correct answer The amount of time it takes for an isotope to decay to half of its original radioactivity. Nuclides - correct answer Atom with any rearranged nucleus Radionuclides - correct answer Atoms with nuclei that undergo radioactive decay How does nuclear medicine work and what sorts of uses/applications does it have? - correct answer Radioactive substances gravitate toward heat (i.e. the source of an infection or trauma), decay, and show up (via emitted radiation) on a camera. It has diagnostic, research, and treatment applications. What are 3 qualities that a radionuclide must/should have? - correct answer Nontoxic, excreted in urine or feces, and have a relatively short half-life. Why do you want the half-life of a radionuclide to be short? - correct answer To reduce exposure to the patient as well as to the medical staff/caregivers. What are the two most common radionuclides? - correct answer Iodine (I) 131 and Technetium (Tc) 99m Which of the two most common radionuclides is used most often in hyperthyroid cats? In nuclear scintigraphy and equine studies? - correct answer Iodine; Technetium What is the unit of radiation? i.e. the quantity identifier for the amount of radiation emitted - correct answer The Curie (Ci, mCi) In order to use radioactive materials in medicine, hospitals must be registered with who? What is the name of the primary department in the US? - correct answer An atomic registry board US Nuclear Regulatory Commission What is nuclear scintigraphy? - correct answer Diagnosis by means of radioisotopes that demonstrates the function of an organ or tissue.