Annual Report on External Quality Assessment in Inborn Error of Metabolism in Korea (2002) / 임상검사와정도관리

The trial of external quality assessment for inborn error of metabolism was performed in 2002. Total 10 specimens for neonatal screening tests were distributed to 61 laboratories with a response rate of 70.5%(43/61). All the control materials were sent as filter paper forms. Each laboratory replied the test results as the screening items they were testing routinely at the reception of the specimen among PKU screening, TSH, T4 (total/free), galactosemia screen, maple syrup urine disease screen, homocytinuria screen and histidinemia screen. The mean, SD, CV, median and range were analyzed.