ENS Event | |
|---|---|
20:00 Feb 9, 2026 | |
| Title | Medical Event |
| Event Description | The following information was obtained from the licensee via phone:
On 2/5/26, at 1300 MST, two patients were scheduled to receive doses of I-131 for thyroid carcinoma. The medical technologist scheduled one dose for each patient with the first patient ordered to receive 50 mCi of I-131 and the second patient ordered to receive 100 mCi of I-131. When the first patient arrived for examination, the technologist prepared a written directive for the 50 mCi prescribed dose. After the examination, the patient came into the radiology department and the patient's information was verified. The technologist then selected the 100 mCi I-131 dose that was intended for the second patient while the authorized user was asking the patient if they had any questions about the procedure. The patient received 105 mCi of I-131 and then was discharged with instructions from the authorized user and technologist. Five minutes after the first patient left, the second patient arrived for their scheduled dose. During patient and dose verification, the technician identified the switch in doses and immediately notified the radiation safety officer, the authorized user, and radiology management. The patient's referring physician and the patient could not be reached but they will be notified when they become available. This is being reported as a dose that differs from the prescribed dose by more than 50 percent in accordance with 10 CFR 35.3045(a)(1)(i). NRC Region IV has been notified. 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 | |
|---|---|
| Billings Clinic Billings, Montana (NRC Region 4) | |
| License number: | 25-01051-01 |
| Organization: | Billings Clinic |
| Reporting | |
| 10 CFR 35.3045(a)(1)(i) | |
| Time - Person (Reporting Time:+-6.28 h-0.262 days <br />-0.0374 weeks <br />-0.0086 months <br />) | |
| Opened: | Christopher Fitz 13:43 Feb 9, 2026 |
| NRC Officer: | Ian Howard |
| Last Updated: | Feb 9, 2026 |
| 58158 - NRC Website | |
Billings Clinic with 10 CFR 35.3045(a)(1)(i) | |
WEEKMONTHYEARENS 581582026-02-09T20:00:0009 February 2026 20:00:00
[Table view]10 CFR 35.3045(a)(1)(i) Medical Event 2026-02-09T20:00:00 | |