ENS Event | |
|---|---|
05:00 Jan 12, 2011 | |
| Title | Unplanned Iodine-131 Dose to an Embryo |
| Event Description | The following event description is from an email message:
On 12 Jan 2011, a Nuclear Medicine patient received a dose of I-131 of 100 milliCuries for a thyroid ablation. She received a pregnancy test just before the dose was administered and the result was negative. Two weeks after the dose she made an ER visit complaining about nausea and vomiting; she was then administered a serum pregnancy test. The result indicated she was roughly two weeks pregnant. On 27 Jan the doctor notified the Navy that the patient became pregnant very close to the therapy time. On 28 Jan a dose calculation estimated the dose to the embryo to be 213 mGy (21.3 rads). On 31 January the Naval Radiation Safety Committee was notified that the patient was possibly pregnant prior to the therapy. Pregnancy test performed immediately prior to therapy was negative. Patient was not trying to get pregnant prior, but did have unprotected intercourse in the few days before therapy. She denies intercourse in the week after therapy. Standard precautions were given to the patient during a visit several weeks prior to the therapy and included the following: 1). She could not be treated if she was pregnant, and 2). A pregnancy test would be performed immediately prior to therapy. At a dose estimate of 213 mGy, there is a slight increased risk of failure to implant, but if the fetus survives, the outcome is expected to be good. This was discussed at length with the patient. The patient and the doctor communicated on 26 Jan after the patient discovered she was pregnant. Further follow up included a phone call the next day and a counseling visit 4 days later, after dose estimate calculations were completed. |
| Where | |
|---|---|
| Medical Treatment Facility Portsmouth, Virginia (NRC Region 1) | |
| License number: | 45-93645-01NA |
| Organization: | U.S. Navy |
| Reporting | |
| 10 CFR 35.3047(a) | |
| Time - Person (Reporting Time:+467.75 h19.49 days <br />2.784 weeks <br />0.641 months <br />) | |
| Opened: | Lino Fragoso 16:45 Jan 31, 2011 |
| NRC Officer: | John Knoke |
| Last Updated: | Jan 31, 2011 |
| 46578 - NRC Website | |
Medical Treatment Facility with 10 CFR 35.3047(a) | |
WEEKMONTHYEARENS 465782011-01-12T05:00:00012 January 2011 05:00:00
[Table view]10 CFR 35.3047(a) Unplanned Iodine-131 Dose to an Embryo 2011-01-12T05:00:00 | |