Peter C J I Schielen, Dianne Webster, J Gerard Loeber, James R Bonham
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Abstract
The International Society for Neonatal Screening (ISNS) has supported the standardization of the measurement of key biochemical markers for the neonatal screening of diseases: thyroid-stimulating hormone (TSH) for congenital hypothyroidism, phenylalanine (PHE) for phenylketonuria, and 17α-hydroxyprogesterone (17OHP) for congenital adrenal hyperplasia. These diseases are commonly a part of neonatal screening panels worldwide. The ISNS provides a series of secondary reference materials to the manufacturers of neonatal screening reagents to assist in the production of calibration materials for kits. This technical note describes the manufacture of the seventh combined dried blood spot reference preparation for neonatal screening (RPNS) for these analytes.
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