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Therapy Medical Events Q&A and Definitions
Patient intervention means any action by the patient, whether intentional or unintentional, during the administration of radiation therapy which causes interference.
Prescribed dose means any dose, including the dose per fraction and the total dose, as documented in the written directive.
Treatment site means the anatomical description of the tissue intended to receive a radiation dose, as described in a written directive.
Treatment modality means the type of radiation beam used such as photons, electrons, or particles.
Written directive means a written order for the administration of therapeutic radiation to a specific patient or human research subject.Patient means an individual subjected to machine produced radiation for the purposes of medical therapy.
Even if none of the dose criteria are exceeded, must an event be reported if the wrong patient is irradiated?
Yes. If the wrong patient is irradiated, the facility must report the event.
What defines a "wrong treatment site"?
Any site other than the site as described in the written directive. If a "geometric miss" occurs (Prescribed tumor volume is not irradiated), it must be reported. It is recognized that body parts that are adjacent to the treatment volume will be exposed to radiation, but this is not a reportable event.
If the treatment course terminates prior to the completion of 80% of the dose, is this a reportable event?
A reportable medical event is meant to be an event that occurred due to treatment errors. If treatment is terminated due to patient death, patient choice, patient transfer to a different institution, or because of a medical decision by the physician, it is not a reportable event but the facility should note the reason in the patient's record.
How should the facility notify LARA of a therapeutic medical event?
The facility must report the event in writing to the department within 30 days. The report may be sent by mail, e-mail, or fax. The report should include the information as outlined in form BHS/HFS-115, Reporting Guideline: Example Format for Therapuetic Machine Medical Events. Other formats are also possible and acceptable.Last update: June 21, 2012
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