The importance of Quality Control material is that it helps detect and eliminate deficiencies in the machine and improve the accuracy of the results. Quality Control is carried out using specific specimens, which are used in the same way as patient materials, and the results of their analysis must be within certain limits. If the indicators go beyond these limits, this fact indicates a lack of operation of the machine. Quality Control materials or specimens must meet a number of requirements and be purchased in large quantities, for example, annual supply, to eliminate the likelihood of inaccurate readings due to material changes.
For the same reason, documenting Quality Control tests is essential to tracking and detecting changes in machine performance. Minor changes may not be noticed by employees if they are not constantly working with the machine, but the documentation can show a tendency for shifts and changes that affect the accuracy of the results.