D-Dimer Quantitative is a test which is used to assess the concentration of either D-Dimer or FEUs(Fibrinogen-equivalent units) depending on the calibration method. It is an efficient and cost-effective method.
What is D-Dimer Quantitative?
D-Dimer Quantitative is useful for finding out the chances of pulmonary embolism among patients with a low probability of the condition. Results are given either as mg/L D-Dimer or as mg/L FEU. It is a sensitive test that provides very accurate results. It is used to exclude venous thromboembolism (VTE) in outpatients.
Why is D-Dimer Quantitative suggested?
The D-Dimer Quantitative test is suggested in patients who are suspected to have an increased D-Dimer level as a result of the following reasons:
- Acute aortic dissection.
- Veins thrombosis and inappropriate blood clotting.
- Shortness of breath and
- Chest pain and high BP.
- Disseminated Intravascular c
How is D-Dimer Quantitative performed?
D-Dimer Quantitative test involves the following steps:
- Blood samples are taken.
- Platelet–free plasma is obtained.
- Latex particles coated with anti D-Dimer MoAbs are mixed with plasma.
- Difference in the result gives information about the D-Dimer quantity.
What parameters are measured in D-Dimer Quantitative?
The following parameters are measured in the D-Dimer Quantitative test:
- A cut–off value is determined by clinical studies and will be validated by management studies.
- A diagnostically sensitive method is employed to avoid too many imaging tests.
- Good reproducibility near the cut–off value.
- Quantitative results.
Preparation before performing the D-Dimer Quantitative test
No special preparation is needed. However, the blood samples may need to be citrated.
Post-care after D-Dimer Quantitative
The test requires no post care. If the D-Dimer level is high,
- Further tests should be considered.
- A doctor should be consulted.
- Necessary precautions should be taken
Sample types in D-Dimer Quantitative
This test requires the following samples:
- Blood samples
- Platelet–free plasma samples
Side effects/risks of D-Dimer Quantitative
There are no side effects. However, the following issues can occasionally arise:
- False negative or positive reading can occur.
- Blood tests can be painful.