White Paper for redraw requests and inconclusive results

NIPT White Papers

Redraw Requests and Inconclusive Results
 

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Most pregnant women receive complete results from cell-free DNA testing, indicating either a high or low probability for aneuploidy. As part of the laboratory’s commitment to consistent and accurate performance, samples that do not meet quality control standards do not receive a probability assessment. Instead, these samples receive a redraw request (if autosomal trisomy probability cannot be evaluated) or an inconclusive fetal sex and/or SCA result if sex chromosomes cannot be assessed. The quality of data from a sample is affected by a combination of technical and biological factors, and while the cause cannot always be identified, awareness of what factors can lead to these reports can help guide clinical follow-up.
 

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