August 2025 CAP Today: D-dimer Reporting and INR Are Variables That Matter

In follow-up to their July 2025 CAP Today article, A Deep Dive into Key Hemostasis Testing Variables, Drs. Andrew Goodwin and Eric Salazar present external quality improvement data on the PT–INR, D-dimer, and VET in their August 2025 article, D-dimer Reporting and INR Are Variables That Matter. Their article in particular examines the confusion over the numerous D-dimer reporting formats and the clinical applications of the D-dimer assay. The article begins with a discussion of the INR calculation and the various interferences that affect INR results.