This document discusses quality assurance in healthcare. It defines quality assurance and related terms like quality control, continuous quality improvement, and total quality management. It describes the key components of quality in healthcare as safety, effectiveness, patient-centeredness, and timeliness. The purposes of quality assurance are to meet customer needs, standardize care, minimize errors, and attain excellence. Nurses play an important role in quality assurance through activities like developing quality monitoring mechanisms, contributing innovations, and participating in improvement efforts.