A monthly output constancy measurement on the linac is outside the department's action limit but inside the manufacturer's service range. The physicist is on site, asks to be told immediately, and treatment is paused. Under the department's QA procedure, what should be documented before the machine returns to patient service?
Select an answer to reveal the explanation.
Short Explanation
You can make the return to service traceable with a complete QA record: document the measured value, actions taken, and the physicist’s release decision, including the date and time. A passing repeat or verbal handoff does not replace that complete entry.
Full Explanation
The required record should make the out-of-action-limit result and the decision to resume treatment traceable. Document the measured value, actions taken, the physicist’s explicit release decision, and both the date and time. Recording the value, actions, and release decision without a timestamp leaves unclear when the events occurred, weakening traceability of the pause and return to service. Recording a dated release decision but omitting the time also leaves the chronology incomplete. Recording the value, actions, and date and time while noting only that the physicist was notified does not establish authorization to resume treatment; notification and release are different documentation concepts. The manufacturer’s service range does not replace the department’s action limit or its required escalation and release process. Exam caveat: follow the stated local QA procedure rather than assuming that a manufacturer’s acceptable range authorizes continued clinical use. Practical check: before treatment resumes, verify that the QA entry contains the result, actions, explicit release decision, and both date and time, and that the recorded decision matches the physicist’s communication.