Jan 30, 2024 · A D-dimer test measures how much D-dimer protein is in the blood. This protein is present when blood clots break down. A typical range is 0-0.50 milligrams per liter (mg/L) of blood.

Mar 28, 2026 · Color-coded D-dimer range chart showing normal, borderline, elevated, high, and critical levels with associated clotting conditions like DVT, pulmonary embolism, and DIC.

Use in patients ≥50 years old presenting to emergency department as outpatients and are being worked up for PE with low to intermediate pretest probability. Do not use in high-risk patients (i.e., those who …

Nov 9, 2021 · There are several different methods for testing the level of D-dimer in your blood, so there’s no one universal “normal” range. Your lab results will provide information indicating if your D …

Jan 17, 2026 · Patients with D-dimer levels between 250-500 ng/mL occupy a gray zone where clinical probability assessment becomes particularly important.

A normal D-dimer test result is negative and means problems with blood clotting are unlikely. If the D-dimer test is used to check if treatment is working for disseminated intravascular coagulation (DIC), a …

Aug 6, 2025 · When you get a cut or wound, your body starts a process called hemostasis to form a clot and stop you from losing too much blood. It forms threads of a protein called fibrin to keep the clot in...

Nov 18, 2025 · D-dimer is measured in two different units: FEU and D-dimer units (DDU). FEU measures the mass of D-dimer with respect to fibrinogen by calibrators based on plasmin-mediated …

Mar 24, 2026 · The reference range can vary from laboratory to laboratory, and results can be reported in either Fibrinogen Equivalent Units (FEU) or D-Dimer Units (D-DU). 14 In general, a normal D …

Standard d-dimer reference ranges use a cutoff of 0.50 mg/L (or 500 ng/mL), with age-adjusted values for patients over 50 years old. As people age, their baseline d-dimer levels naturally increase, so …