How often should an analysis of the number of retakes be performed?

• A. Every week
• B. Every three months
• C. Monthly
• D. Annually

Answer: (B)

Monitoring retake rates is a QA activity that helps reduce patient dose and improve image quality. The frequency should be enough to detect real trends without being overwhelmed by day-to-day fluctuations. An analysis every three months (quarterly) provides a practical balance: it gathers enough data across multiple shifts and days to reveal meaningful patterns, offers a reasonable window to implement corrective actions, and fits typical administrative review cycles.

If you analyze too often, like weekly, you can chase random variation and waste time on minor differences that aren’t actionable. Monthly analyses, while useful in very high-volume settings, can still be resource-intensive and may reflect short-term change more than lasting trends. Waiting a full year to review retakes would let problems persist longer and miss opportunities to reduce unnecessary exposures sooner.