D-Dimer (Quantitative)
| Profile or Test Panel |
DIC Panel
Fibrinolysis Evaluation Profile
Bleeding Diathesis with a Normal APTT/PT Profile
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| Method | Turbidometric |
| Test Information | D-dimer is a specific degradation product of factor XIII-crosslinked fibrin. A monoclonal antibody that recognizes cross-linked D-dimer fragments is used in a semi-quantitative latex agglutination assay. The D-dimer assay is more specific for fibrin degradation than the FDP assay, which detects degradation products of both soluble fibrinogen as well as crosslinked fibrin. D-dimer levels can be elevated in disseminated intravascular coagulation (DIC), liver disease, or venous thromboembolic disease. The presence of rheumatoid factor can result in a false positive D-dimer. |
| Sample Requirements | Whole Blood: 3.2% Sodium Citrated (blue top) OR Frozen Plasma |
| Requested Volume | Two 5 ml 3.2 sodium citrated (blue top) tubes as whole blood OR Frozen plasma in 4 X 1mL aliquots in plastic tubes |
| Minimum Volume or Pediatric volume | Frozen Plasma: at least 0.5ml in 2 plastic tubes. |
| Sample Information | Whole blood is preferred for testing but if it is not possible to send whole blood tubes TO ARRIVE HERE WITHIN 3 HOURS of collection then send frozen plasma. To prepare plasma centrifuge blue top tubes at 1500g for 15 minutes and remove the plasma and centrifuge a second time at 1500g for an additional 15 minutes. Aliquot approximately 1 ml of plasma into 4 plastic tubes, and freeze. |
| Shipping Information | Whole Blood: Send at ambient temperature (18-25C) and must be received within the lab in less than or equal to 3 hours after collection. Frozen Plasma: send on dry iceSend samples to:Bloodworks Northwest Attn: Hemostasis Laboratory 921 Terry Ave Seattle, WA 98104 For additional information, please see Ordering Information |
| Requisition Form | RFT- Hemostasis Reference Laboratory |
| Transaction Code | 3210-07 |
| CPT Codes | 85378 |
| Test Schedule | Monday – Friday |
| Turn around Time (analytic time) | 5 Business Days |
| Report/ Results | Fax number required to receive report |