D dimer is a blood test that evaluates levels of a protein fragment when there’s a clot hanging around in the bloodstream. If this level is elevated, it’s often a tip-off that there was a tiny blood ...

Although D-dimer results within a typical range can rule out pulmonary embolism, high results alone can’t diagnose this condition. Doctors usually need to run extra tests to make a diagnosis. A ...

—Can an age-adjusted cutoff level for D-dimer enable clinicians to safely rule out deep vein thrombosis (DVT) in some adults? That was the question at the core of a multicenter, multinational, ...