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 ...

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. The plasma D-dimer assay has been used, along with clinical prediction scores, to rule out ...

It is best to base ᴅ-dimer testing on a patient's clinical pretest probability (C-PTP) for deep vein thrombosis (DVT), rather than testing all patients who present with symptoms of first DVT episode.

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 ...

A D-dimer test measures a protein fragment that remains in the blood after blood clots break down. It can help diagnose clotting conditions such as deep vein thrombosis (DVT), pulmonary embolism (PE), ...

(HealthDay)—Use of D-dimer levels to exclude pulmonary embolism (PE) has limited clinical utility and may be inappropriate in patients hospitalized with COVID-19, many of whom have increased plasma ...