Quality Control

Question 1

Quality control defn

Answer 1

Study of sources of those variations which are responsibility of laboratory and of procedure used to recognised and minimize them which arise between receipt of specimen and dispatch of reports.

Question 2

Types of quality control

Answer 2

External quality control and Internal quality control.

Question 3

Terms

Answer 3

Accuracy - Closeness of estimated value to true value.
Precision - Closeness of the test results to each other when the same sample is tested repeatedly.
Sensitivity - Ability of analytical method to detect the lowest possible concentration of analyte in a sample.
Specificity - the ability of an analytical method to determine solely the component it purports to measure.