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| Primary Name |
D-dimer, Quantitative |
| Synonym |
D-dimer |
| Synonym |
-- |
| Contraction |
D-Di |
| Contraction |
D-D |
| Contraction |
-- |
| UAB Procedure Number |
2500116 |
| CPT Code |
85379 |
| Specimen |
Collect one (1) blue-stopper tube (3.2% sodium citrate), filled to specified volume. Do not underfill or overfill. |
| Specimen Management |
Centrifuge blue-stopper tube within one (1) hour of collection, separate plasma and test or quick-freeze at -70°C. |
| Specimen Accepted |
Daily including weekends |
| Times Available |
All times |
| Test Performed |
All times |
| Available Stat? |
Yes |
| Description |
*The quantitative D-dimer test may be used to rule out deep venous thrombosis and pulmonary emboli when the result is less than 240 ng/mL.
*The quantitative D-dimer supports the diagnosis of disseminated intravascular coagulation (DIC) when it exceeds approximately 4000 ng/mL. |
| Reference Interval |
Less than 240 ng/mL |
| Critical Value |
-- |
| Therapeutic Range |
Comparison of the quantitative to the semiquantitative D-dimer assay:
|
Quantitative D-dimer
Assay Result |
Semiquantitative D-dimer
Assay Result |
|
Less than 240 hg/mL |
Negative |
|
240-500 hg/mL |
Undiluted |
|
500-1000 hg/mL |
1:2 |
|
1000-2000 hg/mL |
1:4 |
|
2000-4000 hg/mL |
1:8 |
|
4000-8000 hg/mL |
1:16 |
|
8000-16,000 hg/mL |
1:32 |
|
16,000-32,000 hg/mL |
1:64 |
|
32,000-64,000 hg/mL |
1:128 | |
| Follow-up Test |
When the D-dimer is used to test for disseminated intravascular coagulation, it is performed together with the activated partial thromboplastin time, prothrombin time, fibrinogen activity assay, and platelet count. |
| Associated With |
Disseminated intravascular coagulation |
| Associated With |
Venous thrombosis |
| Associated With |
Liver disease |
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