This is a Proprietary Laboratory Analyses (PLA) code, meaning that the code applies to only one unique lab test made by a specific manufacturer or performed by a specific lab. Report 0537U only for Shield™ by Guardant Health Inc. This test analyzes cell–free DNA in blood samples to detect specific patterns linked to colorectal cancer. The test uses next–generation sequencing (NGS) to examine over 2500 regions of DNA with unique methylation patterns that may indicate the presence of cancer. The results are reported as either positive or negative.
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