How often should QC testing be conducted according to established protocols?

Quality Control (QC) testing is a crucial component of ensuring the accuracy and reliability of mammography equipment. The necessity for frequent and systematic testing is to identify any malfunctions, drift in performance, or changes in image quality that might affect patient care. Established protocols dictate that QC testing should be conducted based on the specifications of the particular QC program in place.

This allows for flexibility and adaptation depending on various factors, such as the specific type of equipment, its usage, and regulatory guidelines. Each facility may have its own QC program that outlines the frequency and types of tests required to maintain high standards and comply with necessary regulations, including those set by the American College of Radiology (ACR) and the Food and Drug Administration (FDA).

The other choices imply a fixed frequency or condition for conducting QC testing, which does not account for the variability and individual requirements of different QC programs. Therefore, adhering to a program-specific schedule ensures that the equipment is consistently monitored and maintained according to the best practices and regulatory standards in the field.