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Test Code DDIMER D-Dimer

Collection Container

Light Blue

Specimen Required

Platelet poor plasma, whole blood if received in laboratory within 4 hours of collection

Specimen Volume

Platelet poor plasma: 1 mL aliquot, Whole blood: 2.7 mL

Minimum Specimen Volume

Platelet poor plasma: 0.5 mL aliquot, Whole blood: 2.7 mL.

Transport Temperature

Platelet poor plasma: frozen, Whole blood: ambient temperature

Specimen Stability

Whole blood: 4 hours

Special Handling Instructions

Spin down, remove plasma and spin again. Double centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results.

Reasons for Rejection

Hemolyzed, clotted, Whole blood >4 hours old

Days and Times Performed

24 hours a day, 7 days a week

Turnaround Time

Stat: 1 hour, Routine: 4 hours

Methodology

Immunoturbidimetric

Reference Ranges

0.19 - 1.00 mg/L FEU, Cutoff for negative predictor of DVT/PE: <0.5

LOINC Code

48065-7

CPT Code

85379

EMR Interface Order Code

33850