What is a normal D-dimer?
What is a normal D-dimer?
Normal and Critical Findings A normal D-dimer is considered less than 0.50. A positive D-dimer is 0.50 or greater. Since this is a screening test, a positive D-Dimer is a positive screen.
What is the best D-dimer value?
In the first study (PE confirmed patients/study population = 134/370), it was reported that the best D-dimer cutoff level for significant PE risk = should be 2.152 mg/L (AUC, 0.69; 95% CI, 0.64–0.74; p < 0.05) [11].
What should I do if my D-dimer is high?
People with positive D-dimer tests and those with moderate to high risk for DVT require further study with diagnostic imaging (e.g., CT angiography). When used to monitor DIC treatment, decreasing levels indicate that treatment is effective while increasing levels may indicate that treatment is not working.
What is risky D-dimer?
D-dimer levels were usually elevated for several months before thrombosis. Conclusions: Patients with SLE and normal D-dimer levels are at low risk for thrombosis, irrespective of APA status. Those with persistent unexplained elevated D-dimer levels, particularly when >2.0 μg/ml, are at high risk for thrombosis.
What do the results of D-dimer mean?
The test is used to help rule out clotting as the cause of symptoms. A positive D-dimer result may indicate the presence of an abnormally high level of fibrin degradation products. It indicates that there may be significant blood clot (thrombus) formation and breakdown in the body, but it does not tell the location or cause.
What can raise D dimer?
A plethora of conditions can cause an elevated d-Dimer. Renal failure, liver failure, cancer, severe infections, inflammation, MIs, late-term pregnancy can all cause elevated d-Dimer (in addition to DVTs and PEs).
What does it mean if my D dimer is high?
A high D-dimer means that he has had some inflammation or breakdown of blood clots. In terms of whether this is significant, then his doctor will look at his clinical symptoms, not just the blood tests.
What does D dimer check for?
A d-dimer test is a blood test that measures a substance that is released when a blood clot breaks up. Doctors order the d-dimer test, along with other lab tests and imaging scans, to help check for blood-clotting problems.