Bio Routing
Tc99m chemistry
Renal
CNS
misc.
100
Name 2 routes of administration for radioisotopes
What is IV, Inhalation, oral, intrathecal, Intracavitary
100
Name 2 desirable characteristics of tc99m.
What is low radiotoxicity, photon energy of 140kev, low cost per dose, on-site availability, 88.3% photon abundance, chemically quite versatile
100
Functional unit of the kidney?
What is Nephron
100
Name 3 places where tc99m sodium pertechnetate localizes.
What is thyroid, salivary gland, gastric mucosa, choroid plexus
100
For hepatobiliary imaging name 3 interventional agents.
What is morphine, cck, phenobarbital.
200
Finish the following equation Te=
What is Te= Tp x Tb/Tp + Tb
200
tc99m based radiopharmaceuticals are nearly___% of all radiopharmaceuticals used in diagnostic nuclear medicine.
What is 85%
200
What special precaution must be taken with the Mag3 kit until it is used?
What is protect from light
200
Critical organ for F18 FDG brain metabolism?
What is bladderwall
200
What do sulfur colloid and mag 3 have in common involving the preparation of the kits?
What is boiling the kit.
300
Name 3 methods of localization
What is active transport, phagocytosis, cell sequestration, capillary blockage, simple diffusion, compartmental localization
300
What are 3 radioisotopes that go through ligand exchange.
What is Mag 3, cardiolite, neurolite
300
Radiopharmaceutical are cleared by 2 pathways
What is Glomerular filtration, active tubular secretion
300
In order for a substance to cross the blood brain barrier it must be 3 things, ___-_______, _________, ____ ______
What is non charged, small, lipid soluble
300
___% of body's RE cells are found in the normal liver
What is 85 %
400
Name the method of localization for Tc99m sulfur colloid by the liver.
What is phagocytosis.
400
The presence of oxygen in tagging a kit before adding tc99m can result ___ _____
What is free Tc99m
400
What is special about the quality control of mag3?
What is you have to use a sep-pak
400
What method is used by neurolite to cross the blood brain barrier?
What is passive diffusion
400
Name the order of the vials and the Tc99m in an ultratag kit?
What is vial 1, vial 2, Tc99m
500
name the method of localization of heat damaged RBC removal by the spleen.
What is cell sequestration
500
T/F BActericidal agents are not usually added to tc99m kits.
What is True
500
Name 2 ace inhibitors used in renal imaging.
What is catropril(Capoten), Enalapril(vasotec)
500
What goes in ceretec for brain imaging that doesn't go in neurolite for stabilization?_______ _______
What is methelene blue
500
What does glucagon do for the muscles of the GI tract?
What is relaxes smooth muscles- decreasing peristalsis
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