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Order Code LAB2605 D-Dimer, Plasma

Additional Codes

Test Name in EPIC EPIC Test Code            Mnemomic
RV D-Dimer LAB2605 DDIME
RV D-Dimer (Alere Triage) LAB2605 DDIME

Useful For

D-dimer assay is useful as an aid in the diagnosis of thromboembolic events.  Elevated concentrations of D-dimer are indicative of the presence of a clot and have been reported in DVT, PE, and DIC.

Specimen Requirements

Draw a full, light blue-top (sodium citrate) tube. For pediatric (minimum ) volume use the 1.8 mL tube.  Allow tube to fill completely. Invert gently several times to mix blood.  If collected offsite, please send frozen platelet-poor plasma.

Specimens collected at the Ridgeview Le Sueur Hospital Laboratory:
Collect a full EDTA (purple/lavendar) tube.

Specimen Stability

Specimen Type Temperature      Stability             
Whole Blood Ambient 4 hours
Platelet Poor Plasma (See below) Frozen 2 weeks

 

 

Platelet Poor Plasma Instructions:

  1. Centrifuge the primary tube within four hours of draw
  2. Transfer plasma to an aliquot tube
  3. Centrifuge the aliquot tube
  4. Transfer plasma to a second aliquot tube
  5. Freeze the second aliquot tube

     

 RLSH Only:

Specimen Type Temperature      Stability             
EDTA Whole Blood Refrigerated 24 hours
EDTA Plasma  Frozen > 24hrs

 

Rejection Criteria

  1. Specimens that are clotted
  2. Visible hemolysis
  3. Tube volume below minimum fill line (<90% expected fill) or above maximum fill line

Reference Values

Cutoff:  0.22 - 0.50 mg/L FEU

Le Sueur Medical Center Laboratory Reference Range: 
<400 ng/mL = Normal
400-600 ng/mL = Medical decision- suggests radiologic procedure
>600 ng/mL = POSITIVE

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Ridgeview Medical Center Laboratory

Ridgeview Two Twelve Medical Center Laboratory

Ridgeview Sibley Medical Center Laboratory

Ridgeview Le Sueur Medical Center Laboratory

 

Methodology

Enzyme-Linked Fluorescent Immunoassay (ELFA)

 

Test Classification and CPT Coding

85379