ENS 56860

v t e ENS Event
08:00 Nov 15, 2023
Title	IODINE-131 Overdose
Event Description	The following information was provided by the California Department of Public Health (CDPH) via email: On November 15, 2023, at 2107 PST, [DELETED], the radiation safety officer (RSO) at City of Hope, reported by email that a patient scheduled to receive an oral administration of 100 mCi (millicuries) of iodine-131 (I-131) was instead orally administered 160 mCi of I-131, an excess of 60 mCi. On November 16, 2023, the RSO calculated that the difference in the prescribed dose to the thyroid (target organ) was 488 rem, and that the difference in the prescribed dose to the whole body effective-dose-equivalent was 62 rem. The licensee will be submitting a 15-day written report with additional details. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: No patient intervention was reported immediately but may be reported in the 15-day report. The excess activity of 60 mCi and dose of 488 rem will result in a dose to the patient that exceeds the original prescribed dose by more than 50 percent. 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.

ENS 56860 +/-
Where
City Of Hope Duarte, California (NRC Region 4)
License number:	0307-19
Organization:	California Radiation Control Prgm
Reporting

Agreement State
Time - Person (Reporting Time:+36.08 h1.503 days <br />0.215 weeks <br />0.0494 months <br />)
Opened:	Robert Greger 20:05 Nov 16, 2023
NRC Officer:	Ian Howard
Last Updated:	Nov 16, 2023
56860 - NRC Website
v • d • e

v t e Emergency Notification System
City Of Hope with Agreement State
WEEKMONTHYEAR2023-11-15T08:00:00 [Table view]
[ENS list for City Of Hope]

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