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Quality assurance and standardization: summary of the satellite meeting, Turku, Finland, 11-12 June 1999
D Webster1, J L Dhondt, W H Hannon
1National Testing Centre, Auckland, New Zealand.
Insights
Quality assurance in newborn screening is crucial, encompassing pre- and post-analytical phases. Standardized reference materials and accreditation enhance screening quality and international comparability.
Area of Science:
- Biochemistry
- Clinical Chemistry
- Public Health
Background:
- Newborn screening programs require robust quality assurance (QA) for accurate results.
- The pre- and post-analytical phases are critical components of overall screening quality.
- Existing QA programs need to evolve to address multifaceted challenges in newborn screening.
Framework:
- Implementing multi-site screening programs necessitates specialized QA procedures.
- Developing and utilizing common reference materials, like amino acids, improves analytical quality and enables international comparisons.
- Accreditation of newborn screening programs is appropriate, with a focus on establishing criteria for pre- and post-analytical phases.
Implementation:
- New QA programs are being developed for regions like Latin America.
- Advanced QA initiatives include blind QA for amino acids and acylcarnitines using tandem mass spectrometry.
- Guidelines for specific screenings, such as congenital adrenal hyperplasia (CAH), are being established by professional societies.
Implications:
- Enhanced QA and standardization will improve the reliability and consistency of newborn screening globally.
- International collaboration on reference materials and QA protocols can lead to better health outcomes for newborns.
- The development of comprehensive QA frameworks will support the expansion and improvement of newborn screening services worldwide.
Abstract:
The Quality Assurance (QA) and Standardization satellite meeting addressed five major issues in newborn screening: (i) Pre- and post-analytical phases are important in the overall quality of screening, and quality assurance programs should include these aspects. (ii) It is possible to run a single screening program using laboratories on more than one site, as is done in Europe, California and Cuba. Special quality assurance procedures are necessary for success. (iii) It is possible to achieve improved analytical quality and international comparison of results by use of common reference materials such as the amino acid materials developed in Europe and the US. It will be important to use tested paper with defined performance characteristics. (iv) It is appropriate for newborn screening programs to be accredited, but it will also be important to develop criteria for pre- and post-analytic phases of screening. (v) A new QA program is being developed for Latin America. The Australasian QA program now includes amino acids and acylcarnitines in a form suitable for tandem mass spectrometry blind QA. The European Society for Paediatric Endocrinology has developed guidelines for CAH screening.
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