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A patient received 100% more than the prescribed dose of thallium. The patient was to receive 3.5 milliCuries of thallium followed by 30 milliCuries of Cardiolite, a Tc-99M radiopharmaceutical. Instead, the patient received 3.5 milliCuries of thallium then received an additional 3.6 milliCuries of Thallium. The technician stated that he got confused where the patient was in the treatment process. The patient and physician have been informed. The licensee is awaiting dosimetry results to determine the organ dosage but does not believe there will be any recurring medical effects from this event.

• * * RETRACTION AT 1227 EST ON 1/27/12 FROM MUNDORF TO HUFFMAN * * *

The licensee is retracting this event report after a review and evaluation of the doses administered. The licensee has determined that this event is not reportable based on the unintended dose being less than 5 Rem effective dose equivalent and therefore not reportable under 10 CFR 35.3045. The licensee has discussed this conclusion with NRC Region 1 (Lanzisera). R1DO (Dental) and FSME (McIntosh) have been notified.