What is the normal range for a d - dimer blood test?
Not Medical Advice: The normal result of D-Dimer tests are < or =250 ng/mL D-Dimer Units (DDU); < or =0.5 mcg/mL Fibrinogen Equivalent Units (FEU).
According to NHS, a D-dimer test is a specialised blood test used to detect pieces of blood clot that have been broken down and are loose in your bloodstream. The larger the number of fragments found, the more likely it is that you have a blood clot in your vein.
Some of the conditions that the d-dimer test is used to help rule out include:
- Deep vein thrombosis (DVT)
- Pulmonary embolism (PE)
The D-dimer test is not always reliable. Blood clot fragments can increase after an operation or injury, or if there is inflammation in your body (when your immune system reacts to an infection or disease).
If the D-dimer test is negative, it rules out the possibility of a DVT in up to 97% of cases.
Find more information about the D-dimer test at Lab Tests Online.
Tip! Learn ways to prevent Deep Vein Thrombosis at Everyday Health.
In medical news, a recent study entitled “Assessment of the Safety and Efficiency of Using an Age-Adjusted D-dimer Threshold to Exclude Suspected Pulmonary Embolism” suggests that adjusting the value of a d-dimer test according to patient age is a safe and accurate method to determine patients with pulmonary embolism. Find out more at Lung Disease News.