Upon quality review a misadministration was discovered by hospital staff on March 3, 2007; the actual medical procedure was performed on January 23, 2007. It is estimated that patient was administered a dose less than 20% of the intended dose. State was notified on 19 March 2007. This incident is referred to [the State's] radioactive materials [office] for investigation.
The misadministration involved a Gamma Knife. A quality review by the licensee confirmed that a treatment dose was prescribed as
- 40% of maximum dose equivalent equals 11Gy; but was calculated as - 50% of maximum dose equals 11Gy.
This discrepancy resulted in the administration of a dose that was 20% less than intended.
State Report FL07-046
- * * Update on 03/20/07 at 1408 EDT via e-mail from FSME (C. Flannery) to MacKinnon * * *
This event has been reviewed and determined to be a medical event. Immediate release to the public is authorized.
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.