What is the consequence of poor exposure reproducibility on dose tracking and QA comparisons?

• A. It can hinder dose tracking and QA comparisons across time and devices.
• B. It improves image quality with less dose.
• C. It has no impact on QA.
• D. It makes patient positioning unnecessary.

Answer: (A)

Poor exposure reproducibility means each exam can end up with a different dose or image result even when the protocol is the same. Dose tracking and QA rely on stable, comparable exposure conditions to attribute any changes to actual performance or patient dose rather than to technique variation. If exposures vary from session to session or across devices, you can’t reliably track how the dose changes over time or compare QA metrics between machines or setups. The result is unreliable monitoring, with genuine performance issues potentially hidden or misattributed. The other options don’t fit because variability in exposure doesn’t inherently improve image quality or reduce dose, and it certainly does impact QA and has nothing to do with eliminating the need for proper patient positioning.