CBRN event in United States of America on Wed 7th January 2026

The following is a summary of information provided by the Iowa Department of Health and Human Services (the Department) via phone and email:

On January 7, 2026, a 150.4 mCi I-131 treatment was administered to a female who had tested negative on a serum pregnancy test two days before, on January 5, 2026. On January 9, 2026, a follow-up serum pregnancy test came back negative. The patient took a pregnancy test (urine) at home that day which came back positive. A second follow-up serum pregnancy test was administered on January 12, 2026, and returned a positive result.

The physician notified the licensee radiation safety officer on January 13, 2026, and the Department was notified on January 14, 2026.

Investigation into the event still ongoing. The hospital is working to calculate/determine what the dose to the embryo was. The Department will perform a reactive inspection/meeting on January 20, 2026.