ENS 44816
ENS Event | |
|---|---|
06:00 Jan 29, 2009 | |
| Title | Agreement State Report - Personnel Contamination From I-131 Spill In Hot Lab |
| Event Description | The radiation safety officer [RSO] for Northwestern Memorial Hospital called the Agency [State] to advise that a technician had spilled a significant quantity of I-131 in their hot lab. The technician was preparing a radioiodine therapy dose of 100 milliCi for ingestion by a patient when the spill of the liquid occurred. The technician had been removing the vial from the fume hood to perform a dose calibration when the material slipped from his hands and broke on the floor of the hot lab. The technician was contaminated on his hands, torso and legs. The material, although small in volume, was concentrated, such that even small drops of the liquid exhibit high dose rates. Initial decontamination efforts managed to reduce the contamination on the individual such that the contamination only remained on their hands. The initial measured dose rate was approximately 7 milliR/h.
The spill victim was excluded from the cleanup process to reduce the possibility of a significant uptake to their thyroid. All individuals involved in the clean up as well as the technician took prophylactic KI. According to the RSO, decontamination will continue until only fixed contamination remains. He estimated that as much as 80% of the contamination had been contained/removed by the time of his call a few hours after the event. Dose rates in the area were initially over 50 milliR/h. Additional shielding was moved into the area so that medically necessary nuclear medicine procedures could be completed while the decontamination was finished. Dose rates behind the shielding indicated less than 1 milliR/h. Bioassays will be conducted during subsequent days to determine the extent of any uptake that has occurred for those involved. Arrangements were made for the radiopharmacy to be shut down and operations relocated to another temporary facility within the hospital. Waste generated from the initial decontamination effort was secured within the pharmacy hot lab in the fume hood. Access will be restricted to only those granted leave by the RSO to reenter the lab. Arrangements have been made for an Agency [State] inspector to go to the site to ascertain and verify the dose rates in the area, the extent of contamination and ensure that bioassays are being conducted properly. Depending on the results of those assessments, the Agency [State] may take additional action. Incident number: IL0900010 |
| Where | |
|---|---|
| Northwestern Memorial Hospital Chicago, Illinois (NRC Region 3) | |
| License number: | Il-01037-02 |
| Organization: | Illinois Emergency Mgmt. Agency |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+30.22 h1.259 days <br />0.18 weeks <br />0.0414 months <br />) | |
| Opened: | Daren Perrero 12:13 Jan 30, 2009 |
| NRC Officer: | John Knoke |
| Last Updated: | Jan 30, 2009 |
| 44816 - NRC Website
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Northwestern Memorial Hospital with Agreement State | |
WEEKMONTHYEARENS 570972024-04-30T05:00:00030 April 2024 05:00:00
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