What can cause a calibration shift in a bone densitometry device?

• A. Changing the scanning protocol
• B. Relocation or maintenance
• C. Using a different phantom type
• D. Adding new software updates

Answer: (B)

A calibration shift in a bone densitometry device can occur due to relocation or maintenance. When a device is moved from one location to another, it may be subjected to different environmental conditions, such as temperature and humidity, which can impact its performance and measurement accuracy. Furthermore, any maintenance procedures, such as recalibration or adjustments made to the device components, can also lead to a shift in calibration.

Maintaining the accuracy of bone densitometry measurements is critical, as changes in calibration can affect the reliability of bone density results, potentially leading to misdiagnosis or inappropriate treatment decisions. Therefore, proper calibration checks and adjustments are essential whenever the device is relocated or undergoes maintenance to ensure accurate and reliable bone density assessments.