A study of pre-analytical errors in the clinical biochemistry laboratory of Shri Mahant Indresh Hospital, Dehradun

Abstract

The aim and objective of study was to categorize and calculate the percentage error of pre-analytical variables in the clinical biochemistry laboratory. A Prospective study was Conducted at Central laboratory Department of Biochemistry Shri Mahant Indresh Hospital for a period of three months from December 2021 to February 2022.During this period different types of pre-analytical errors were monitored. Out of 279,137 samples received during the study period, 152 samples were found to be unsuitable for testing, accounting 0.054% of the rejection. All the samples were rejected due to different types of pre-analytical errors that are due to haemolysis 140 (0.050%) followed by wrong sample 6 (0.0021%), Typing error 3 (0.00107%) and Wrong ID 1(0.00035%).Out of these rejection 148 samples were from IPD and 4 samples were from OPD. Pre-analytical errors occurring in each laboratory have to be checked. In this study pre-analytical errors in IPD samples were more than OPD samples. Such errors are not inevitable and can be avoided with diligent application of quality control, continuing education and effective collection system.