Radiopharmaceuticals inhalation

Typically, the radiopharmaceutical is injected intravenously (in a vein), but some studies require inhalation (as a radioactive gas), or ingestion. The distribution of the radiopharmaceutical in the body or organ can reveal the normal or altered state of blood flow, capillary permeability, tissue metabolism, or specific function of an organ system. For example, if the physiology of an organ system or area of an organ is changed for reasons... 

Mental disorders are diagnosed by SPECT, gamma-camera or PET using various radiopharmaceuticals, e.g. after the injection of Tc-HMPAO (Hexa Methyl Propylene Amine Oxide) or inhalation of Xe. Injecting 1000 MBq Tc-complex into the blood stream, about 5 % of this compound moves to the brain, passes the membrane of the blood vessels and enters into the brain tissue, where it decomposes and decays with its 6.0 h half-... 

Biologies, diagnostics, drugs, nutrients, and radiopharmaceuticals that possess either of the above two characteristics and which may include haths and soaks for live organs or tissue, implants, inhalations, injections, powders for injection, irrigations, metered sprays, and ophthalmic and otic preparations. 

A radiopharmaceutical is a radioactive medicinal product for diagnostic, therapeutic or palliative use. Parenteral radiopharmaceuticals usually consist of a radionuclide coupled to another pharmaceutical compound, also called a ligand. Some radionuclides are administered as such. Alternative dosage forms are capsules for oral use or a radioactive gas for inhalation. All dosage forms are shielded, in lead or... 

Some radiopharmaceuticals are administered by inhalation 15.5.4 Good Manufacturing Practice (GMP)... 

---