A new technologist is busy one night and has to perform an RPR on a serum sample.He does not calibrate the needle delivering the antigen,and the needle is delivering a larger volume of antigen than it is supposed to.What kind of error can this produce?

Question

Quizplus · Accepted Answer

A laboratory-induced false negative resulting from postzone can occur if an excess of antigen is used in tests like the RPR (Rapid Plasma Reagin), leading to a scenario where there are not enough antibodies to form visible clumps, thus potentially missing a positive result. This is known as the prozone effect, which is a type of non-specific negative result.

A New Technologist Is Busy One Night and Has to Perform