Interferences: Important pre-analytical variables are lipemia, hemolysis and icterus, which can markedly affect interpretation of test results and accuracy of results. Information on how these affect results of testing are provided here. See also interference indexes, which are numerical results of these interferences provided by our chemistry analyzer.
Common artifacts: A quick reference table on factors that affect clinical pathologic results, such as lipemia, hemolysis (more specific detail is provided below under interferences), storage of blood on cells, delayed sample submission, post-mortem artifacts.
Physiologic patterns: Changes you can expect to see as a consequence of physiology, e.g. prematurity.