How frequently should quality assurance (QA) be performed on the DXA unit?

• A. Once a week
• B. Every time a scan is conducted
• C. Every month
• D. Everyday you scan

Answer: (D)

Quality assurance (QA) on a DXA (Dual-Energy X-ray Absorptiometry) unit is essential for ensuring the accuracy and reliability of bone density measurements. Performing QA every day you scan is critical because it helps to identify any issues with the equipment that could affect the results. Regular QA checks include calibrating the machine, checking the performance of the detector, ensuring that software is functioning correctly, and confirming that the imaging quality meets the necessary standards.

Daily QA serves to mitigate variations that can arise from factors such as equipment wear and tear, environmental changes, and user operation. By conducting these checks before each day's scanning activities, healthcare professionals maintain the integrity of patient data and ensure that patients receive an accurate assessment of their bone health.

This frequency aligns with industry standards and guidelines that emphasize the importance of regular maintenance and quality control in medical imaging to promote patient safety and excellent care outcomes.