ENS 57783

v t e ENS Event
05:00 Jun 25, 2025
Title	Unplanned Contamination
Event Description	The following information was provided by the Illinois Emergency Management Agency via phone and email: On 6/25/2025, the associate radiation safety officer at Northwestern Memorial Healthcare (IL-01037-02) called to advise that following a successful Sir Spheres therapy procedure at Central DuPage Hospital, the nuclear medicine technologist dropped the residual dose vial containing 72 mCi of Y-90 Sir Spheres on the floor within the nuclear medicine hot lab (restricted area). Nuclear medicine personnel followed emergency procedures and promptly notified radiation safety staff. Contamination of personnel was limited to clothing and booties which were immediately removed and placed in storage for decay. Subsequent personnel surveys were conducted and confirmed contamination was limited to clothing and booties with no contamination to the skin. The licensee met reporting requirements of 32 Ill. Adm. Code 340.1220(a)(2). Inspectors will conduct a reactive inspection on 6/26/2025, to verify appropriate surveys were conducted and confirm adequate decontamination of personnel and the hot lab. Illinois NMED Number: IL250026

ENS 57783 +/-
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:+10.18 h0.424 days <br />0.0606 weeks <br />0.0139 months <br />)
Opened:	Robin Muzzalupo 15:11 Jun 25, 2025
NRC Officer:	Ian Howard
Last Updated:	Jun 25, 2025
57783 - NRC Website
v • d • e

v t e Emergency Notification System
Northwestern Memorial Healthcare with Agreement State
WEEKMONTHYEAR2025-06-25T05:00:00 [Table view]
[ENS list for Northwestern Memorial Healthcare]

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