According to the standard of practice, what should a technologist do if a dose calibrator reading exceeds the expected values by 12-15%?

When a dose calibrator reading exceeds the expected values by 12-15%, using a correction factor to determine true activities is the appropriate response. This situation indicates a potential discrepancy in the measurement, which could stem from various factors, such as calibration drift or changes in environmental conditions. By applying a correction factor, technologists can adjust the reading to reflect a more accurate estimation of the activity, which allows for the safe administration of radiopharmaceuticals.

It is important to note that while retaking the measurement, recalibrating the dose calibrator, or reporting to a supervisor are actions that might be relevant in different contexts, they do not directly address the immediate need to ensure accurate computations regarding administered doses. Using a correction factor allows for a quick yet effective means to resolve the issue while still adhering to standards of safety and accuracy in nuclear medicine practices. This approach serves to uphold patient safety and maintain the quality of diagnostic information.