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HelpTest Code LAB2652 D-Dimer
Additional Codes
D Dimer
Collection:
Specimen: Blood
Container: Blue Top Tube with 3.2% (0.109 M) buffered Sodium Citrate anticoagulant only
Specimen Volume: 3.5 mL Must be filled to arrow (Greiner tube Black Disk) or line (BD)
Pediatric Collection: 2.0 mL Must be filled to arrow (Greiner tube White Disk) or line (BD)
Notes:
- Samples not filled properly will be rejected (over or under filled).
- If the patient's hematocrit is >55%, call Lab Client Services at 792-0707 to obtain an anticoagulant adjusted tube.
- For collection information and guidance refer to MUSC Laboratory Services Hemostasis / Coagulation Collection Guideline.
Stability:
Room Temperature: 8 hours Whole Blood
Refrigerated: 8 hours Whole Blood
Frozen at or below -20°C: 2 weeks
Note: Frozen samples must be platelet poor plasma aliquoted from primary tube. Label as Na Citrate or blue top plasma.
Turnaround Time (TAT):
STAT: 1 HOUR
Routine: 3 HOURS
Test Availability:
Daily / 24 Hours / Available STAT
Performing Laboratory Section:
COAGULATION / UMC MAIN LABORATORY
Reference Interval:
< 0.43 ug/mL FEU (Fibrinogen Equivalent Unit)
Interpretive Data:
Although some studies have established cut off levels for use of the D-Dimer Assay to exclude Deep Vein Thrombosis (DVT) and/or Pulmonary Embolism (PE), a cut off level has not been established or validated by this facility for the Diagnostica Stago Liatest D-Dimer Assay; therefore, a negative D-Dimer result of <0.43 ug/mL FEU should not be used exclusively to rule out the diagnosis of DVT or PE.