Introduction
Table of Contents
The D-Dimer test measures a substance released when a blood clot breaks up. It helps diagnose clotting disorders. Doctors often order this test to rule out conditions like deep vein thrombosis. It is also useful for diagnosing pulmonary embolism. A high D-Dimer level indicates abnormal blood clotting. However, other conditions can also cause elevated levels. The test is simple and involves a blood sample. Results are usually available quickly. Doctors use D-Dimer results along with other clinical information. They do this to make a comprehensive diagnosis. Prompt diagnosis and treatment of clotting disorders can prevent complications. Thus, this test plays a crucial role in medical diagnostics.
Test Result, Unit, Reference Range, and Method

Keynotes
- The D-Dimer test measures a substance released when blood clots break down.
- Doctors use it to detect and monitor clotting disorders.
- High D-Dimer levels indicate increased blood clot formation and breakdown.
- The test helps diagnose deep vein thrombosis (DVT) and pulmonary embolism (PE).
- It can also assist in diagnosing disseminated intravascular coagulation (DIC).
- Doctors often order the test when patients have symptoms of blood clots.
- Elevated D-Dimer levels are not specific to blood clots alone.
- Infections, inflammation, and recent surgery can also raise D-Dimer levels.
- The test involves a simple blood sample from the patient.
- Results are usually available within a few hours.
- Doctors use D-Dimer results with other clinical assessments for diagnosis.
- A normal D-Dimer level can rule out blood clotting disorders.
- However, high levels require further investigation and imaging tests.
- The D-Dimer test is highly sensitive but not highly specific.
- It is a valuable tool for emergency and critical care settings.
- Timely diagnosis of clotting disorders prevents severe complications.
- The test is particularly useful for patients with risk factors for clots.
- It aids in monitoring treatment effectiveness for clotting conditions.
- Physicians rely on the D-Dimer test for quick, initial screening.
- Understanding D-Dimer results helps guide further diagnostic steps.