Preexamination Variables That May Be Introduced into a Test System

Multiple Choice

Preexamination variables that may be introduced into a test system by a failure to properly calibrate and maintain centrifuges include all the following except:

A) incomplete separation of cells and plasma or serum in samples.
B) deterioration of chemical elements in the samples.
C) cellular damage including hemolysis caused by excessive speed or time in the centrifuge.
D) unacceptable results for quality control specimens.