Quality Control in Cytology

The matter of quality control does require two major approaches: 1 Internal quality control: this is the practice within a laboratory and demands a distinct operation under the control of a senior member of staff. 1 External quality assurance: this is usually established at an interlaboratory level and run by a professional peer group, such as an institute or college of pathology, and in any event not by an employer so as to obtain a fair assessment of the practice in each laboratory from its individual members of staff.