The D-dimer level is a sensitive but nonspecific marker of thrombosis D-dimer testing is useful for excluding venous thromboembolism (VTE), where a low D-dimer level helps exclude deep vein thrombosis (DVT) and pulmonary embolism (PE).1 However, elevated levels are nonspecific and may occur with infection, cancer, pregnancy, and older age.1 Results can be combined with clinical pretest probability to avoid unnecessary imaging For hemodynamically stable patients with suspected PE, Wells’...