QUALITY CONTROL METHODS FOR GOOD LABORATORY PRACTICE IN CLINICAL LABORATORY

Quality Control in the clinical laboratory is a system designed to increase the probability that each result reported by the laboratory is valid and can be used with confidence by the physician at making a diagnostic or therapeutic decision. Quality control (QC) procedures function by detecting analytical errors. The general method existed is not preferable for the assessment of quality control as per the guidelines given by World Health Organisation (WHO). Keeping these points in view the present study was carried out on Quality assessment of the laboratory results of blood urea, thyroid hormone, blood glucose and uric acid levels measurements, obtained from different, departments at New Horizon college of engineering, Bangalore, India. The quality assessment of the different molecules was done by means of the statistical methods Mean (x¯ ), Standard deviation (s), Coefficient of variation (CV) and the Standard deviation index (SDI) asper the WHO suggestions, and assess the quality of the results by means of general and specific assessment methods like internal quality control (ICQ) and external quality assessment (EQA). 10 samples for duplicate test and 11 samples for replicate test (As per WHO suggestions) were studied for blood urea, thyroid hormone, glucose level and uric acid levels measurements respectively. Biostatistical analysis of present study agrees with the statistical analysis recommended by WHO.