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A Reevaluation of the Procedures Used to Perform Thyroid Bioassay on Nuclear Medicine Personnel Following Radioiodine Handling Procedures

Lorah, Brian; King, Steven; Achey, Bryan*

doi: 10.1097/HP.0b013e3182486e25
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A routinely used thyroid uptake counter in Nuclear Medicine is evaluated to determine if its sensitivity is sufficient to perform routine thyroid bioassays on Nuclear Medicine personnel involved in handling and administering radioactive iodine. The BiodexAtomlab 950 (PC) Medical Spectrometer thyroid uptake counter system is found to be sensitive to 0.48 kBq (0.013 μCi) for 131I, which is 31% of the regulatory limit of 0.04 μCi. A computer program is developed that allows the Nuclear Medicine staff to perform their own thyroid counts with results automatically available to the Health Physics Lab via computer.

A routinely used thyroid uptake counter was evaluated and a computer program developed to ease the burden on nuclear medicine technologists.

*Penn State Hershey Medical Center, Hershey, PA 17033.

The authors declare no conflict of interest.

©2012Health Physics Society