Biomarkers · Chemical
%ctDNA
- LOINC codes
- 93047-9
- Tests that measure %ctDNA
- Labcorp 1
Tests
Check the catalog code, specimen, method and preparation for every test that measures %ctDNA. Select up to five tests to compare them side by side.
Labcorp 1 test
Single-analyte tests
Plasma Detect Genome MRD - Monitoring 484551
Blood · Fasting not stated
Labcorp catalog pageMethod and collection
- Method
- Whole genome sequencing data of plasma obtained from peripheral whole blood specimens of monitoring specimens is compared with baseline sequencing data from tumor-informed whole genome sequencing utilizing matched FFPE tumor tissue, white blood cells and plasma obtained from peripheral whole blood. Nucleic acid extraction is performed on plasma from peripheral whole blood from the monitoring specimen and next-generation sequencing libraries are prepared for cell-free DNA, which are then sequenced. Data analysis is performed for alignment, quality control analyses, single nucleotide variant calling and filtering to provide the overall status for detectable ctDNA along with an estimate of tumor content. The analytical sensitivity of the Labcorp Plasma Detect Genome MRD tests is 0.005% tumor content with 99.4% analytical specificity.
- Collection
- Whole blood: Samples collected in cell-free DNA BCT are stable for up to seven days at temperatures between 2°C and 30°C. Indicate date and time of collection on test request form.
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1 test: codes, specimens, methods, preparation and reference intervals.
LOINC 93047-9
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for %ctDNA
Registered studies that measure %ctDNA, on the U.S. National Library of Medicine registry.
Verify these ranges and sources
We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.
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