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 Start dateReporting criterionTitleEvent descriptionSystemLER
ENS 5613329 September 2022 18:00:0010 CFR 35.3045(a)(1)Medical Event - Patient UnderdoseThe following information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: On September 29, 2022, a patient was administered an I-131 treatment to the thyroid. The patient did not receive the additional administration of Thyrogen, a hormone meant to enhance the uptake of I-131 to the thyroid. This resulted in dose delivered to other areas of the body and an underdose to the thyroid of preliminarily greater than 20 percent. Additional preliminary calculations showed that the bladder received approximately 17 Rem and the patient received a whole body dose of 39 Rem. A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.