Synonyms/Also Known as
Fragment D-dimer, Fibrin Degradation Fragment
Fibrin Degradation Products, FDP, Fibrin Split Products, FSP, PT and INR, PTT, Fibrinogen, Platelet Count
Why get tested?
To help rule out and diagnose conditions related to thrombosis.
When to get tested?
when there are symptoms of a thrombosis, in conditions such as deep vein thrombosis (DVT), pulmonary embolism (PE), or disseminated intravascular coagulation (DIC) which results in inappropriate clot in the body.
Test preparation needed
No special preparation required
About The Test
How is it used
1. What are the risk factors for inappropriate blood clotting?
Major surgery, major trauma, prolonged immobilisation, hormone replacement therapy, obesity, smoking, antiphospholipid syndrome etc. are some of the risk factors for inappropriate blood clot.
2. If D-dimer test is positive, what other tests may be useful?
Venous ultrasound, CT, pulmonary angiography or ventilation-perfusion scan may be useful.
3. Mention few conditions where D-dimer levels are increased?
Deep vein thrombosis and pulmonary embolism, stroke, DIC, malignancy, trauma, surgery, pregnancy, sepsis, large hematoma etc.
4. What is the clinical use of the D-dimer assay?
D-dimer is a non specific test and it helps in excluding a thromboembolism, if the test result is negative.