Medical laboratory is the first front line in the diagnosis of diseases in the diagnostic
medicine. All kinds of laboratory tests need a Quality Control (QC) program which is
considered as the foundation stone for the medical laboratory to achieve precise and accurate
results. QC is a systematic method that ensures a laboratory maintains standards and
reliability in reporting a test result (Saxena et al., 2007). For a medical laboratory that serves a
real purpose, the results of the tests must be correct and reliable. The tests themselves must be
relevant for the diagnosis and clinical care of patients, and for health screening and
epidemiological studies as well (Lewis, 1998).