We didn’t invent the lab test,
We simply perfected it.
Notification Type
Back D-DIMER | |
|---|---|
| Test Code:DDI | Specimen Collection:Citrated plasma, frozen (2mL) |
| Component: D-Dimer | Method: Optical multiwavelength technology for clotting, chromogenic, and immunoturbidimetric assays. |
| Collection Notes:Draw to the proper fill level (do not overfill or underfill) because the correct ratio of blood to citrate is critical (9:1). Mix by gentle inversion 5 – 6 times to mix. Centrifuge for 15 min at 1500 x g within one hour of collection. Remove plasma using a plastic pipette and transfer into a new tube. Repeat centrifugation at 1500 x g for 15 minutes to assure complete platelet removal. Transfer the platelet-poor plasma into a new plastic vial using a plastic transfer pipette. Label tube appropriately. Freeze immediately. Thawed or room temperature specimens will be rejected. Hemolyzed plasma is not acceptable. Ship on dry ice. **1 Aliquot tube needed per frozen test (Ex. D-dimer & Fibrinogen ordered together = 2mL plasma citrate into two aliquot tubes (1mL in each tube)** | |
| Clinical Utility:Marker of fibrin degradation; helps exclude venous thromboembolism (DVT/PE) when used with clinical assessment. | |
| CPT Code:85379 | Testing Location:Access Labs |
SPECIMEN/STABILITY TYPETemperature:Citrated plasma, frozen Blue-top (3.2% sodium citrate) tube Frozen 15 Days Pour off plasma (Transfer Tube) Frozen 15 Days | |