ENS Event | |
|---|---|
06:00 Jan 9, 2026 | |
| Title | Medical Event |
| Event Description | The following information was provided by the Illinois Emergency Management Agency (the Agency) via phone and email:
The Agency was contacted on January 9, 2026, by radiation safety staff at Northwestern Memorial Hospital to report that a patient prescribed 21.1 mCi (0.7807 GBq) of Y-90 TheraSpheres on that date received approximately 36 percent of the prescribed dose. A previously administered dose to the same patient was delivered without incident. The patient and referring physician were notified, and there was no reported adverse impact to the patient. The investigation is ongoing, and a reactive inspection will be conducted next week to review procedures and identify the possible root cause. This event meets the criteria for a reportable event under 32 Ill. Adm. Code 335.1080 and was reported to the NRC on January 9, 2026. Illinois item number: IL260001 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. |
| Where | |
|---|---|
| Northwestern Memorial Healthcare Chicago, Illinois (NRC Region 3) | |
| License number: | IL-01037-02 |
| Organization: | Illinois Emergency Mgmt. Agency |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+10.45 h0.435 days <br />0.0622 weeks <br />0.0143 months <br />) | |
| Opened: | Robin Muzzalupo 16:27 Jan 9, 2026 |
| NRC Officer: | Sam Colvard |
| Last Updated: | Jan 9, 2026 |
| 58112 - NRC Website | |
Northwestern Memorial Healthcare with Agreement State | |
WEEKMONTHYEARENS 581122026-01-09T06:00:0009 January 2026 06:00:00
[Table view]Agreement State Medical Event ENS 577832025-06-25T05:00:00025 June 2025 05:00:00 Agreement State Unplanned Contamination ENS 577152025-05-15T05:00:00015 May 2025 05:00:00 Agreement State Medical Event ENS 573772024-09-23T05:00:00023 September 2024 05:00:00 Agreement State Therasphere Device Failure 2026-01-09T06:00:00 | |