Scheme for the selection of measurement uncertainty models in blood establishments' screening immunoassays

Paulo Pereira*, James O. Westgard, Pedro Encarnação, Jerard Seghatchian, Gracinda de Sousa

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

3 Citations (Scopus)

Abstract

Blood establishments routinely perform screening immunoassays to assess safety of the blood components. As with any other screening test, results have an inherent uncertainty. In blood establishments the major concern is the chance of false negatives, due to its possible impact on patients' health. This article briefly reviews GUM and diagnostic accuracy models for screening immunoassays, recommending a scheme to support the screening laboratories' staffs on the selection of a model considering the intended use of the screening results (i.e., post-transfusion safety). The discussion is grounded on a "risk-based thinking", risk being considered from the blood donor selection to the screening immunoassays. A combination of GUM and diagnostic accuracy models to evaluate measurement uncertainty in blood establishments is recommended.
Original languageEnglish
Pages (from-to)42-47
Number of pages6
JournalTransfusion and Apheresis Science
Volume52
Issue number1
DOIs
Publication statusPublished - 1 Feb 2015

Keywords

  • Diagnostic accuracy
  • GUM
  • Measurement uncertainty
  • Post-transfusion safety
  • Risk assessment
  • Screening tests

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