National comparison of 131I solution measurement in Romanian nuclear medicine units

The national comparison regarding 131I solution activity measurement, organized by the Radionuclide Metrology Laboratory (RML) aimed at the quality assurance of the measurements of activity along the process of production, quality control, distribution and use of radiopharmaceuticals, Na131I being one of the most used. Such trial comparisons are often organized in various countries as a step for the assurance of the measurement traceability up to national and international standards Their necessity was imposed by the fact that many errors are made in hospitals during the administration of radiopharmaceuticals, generally resulting in a supplementary irradiation of the patients. RML, recognized as an authorized metrology laboratory, organized previously national comparisons regarding environmental radioactivity measurements. The comparison involved the following steps: preparation, standardisation, check and distribution of the solution, measurement and processing of the obtained results. (author)