Help Please log in to determine if you are eligible to purchase PT Programs. CELL-FREE TUMOR DNA - CFDNA Analytes/procedures in bold type are regulated for proficiency testing by the Centers for Medicare & Medicaid Services (CMS). Analyte/Procedure Challenges per Shipment Number of Shipments cfDNA 3 Two shipments per year Additional Information DNA fragments stabilized in simulated plasma. This is not intended for laboratories that perform circulating tumor cell (CTC) analysis. Genes in this program include: EGFR, BRAF, KRAS, NRAS, IDH1, PIK3CA, ERBB2, MET, and BRCA1. This program includes variants present with a variant allele fraction (VAF) range of 0.1% - 3.0%. Program Information Three 125-ng DNA (25 ng/mL) specimens Shipping Schedule Shipment A: April 25 Shipment B: September 26 Guest Log in/Register Customers Who Bought This Item Also Bought MULTIGENE TUMOR PANEL VIEW DETAILS >