cfdna
Circulating free DNA (cfDNA) refers to DNA fragments released into the bloodstream from normal and diseased cells, including cancer cells. These fragments are found in biofluids and provide real-time information that can be used to detect and monitor biomarkers of various diseases, including cancer. cfDNA is particularly valuable for non-invasive prenatal testing (NIPT) and liquid biopsies for cancer detection and monitoring, benefiting individuals seeking less invasive diagnostic methods.