Quality
Control
•UQC programs
depend on specimens that are reproducible and are usually purchased from a supply company.
•UThese
specimens are called Acontrols@ and the manufacturer supplies the acceptable range (" 2 SD) for each analyte.
•UTypes of
controls include:
•ePositive and
Negative controls
•eTri-level
controls (High, Normal, Low)
•eNormal and
abnormal controls
•eInternal or
intralaboratory
•eExternal or
interlaboratory