How often are phantom scans performed for Quality Control (QC)?

• A. Once a month
• B. Only when issues arise
• C. Regularly, often weekly or per protocol
• D. Daily

Answer: (C)

Phantom scans are an essential part of the Quality Control (QC) process in bone densitometry. Regular performance of phantom scans, often on a weekly basis or as specified by protocol, helps ensure that the densitometry equipment is functioning correctly and providing accurate measurements. These scans allow operators to assess the calibration and overall performance of the bone density machine by providing a known reference point against which the readings can be compared.

By conducting these scans regularly, potential issues can be identified and addressed proactively, minimizing the risk of inaccurate patient assessments. This consistency is critical because bone density measurements can significantly impact diagnosis and treatment decisions for conditions such as osteoporosis. Therefore, adhering to a protocol for phantom scans as specified by the manufacturer or governing bodies ensures that standards for patient care are maintained.

Other options, like performing scans only when issues arise or less frequently, may not provide the necessary oversight to catch small fluctuations in machine performance that could affect patient results. Regular checks, therefore, are crucial for high-quality diagnostics in the field of bone densitometry.