Preferred Sample Type

D-Dimer

D-Dimer

Specimen Volume

3.5ml

Specimen Transport

Standard transport to laboratory

Sample Preparation

Samples for any coagulation tests must be filled to the black fill line indicated on the sample tube. Any sample filled above or below this level will be rejected and a repeat sample will be required

Turnaround Time

24 hours

Sample Processing In Laboratory

Sample should be centrifuged

Sample Stability

12 hours from venepuncture (ideally received no later than 4 hours after collection)

General Information

Samples that meet the following criteria will not be processed:

  • Haemolysed, clotted, underfilled or overfilled samples.
  • Samples >12 hours old from the time of collection.
  • Samples received from other hospital laboratories that have been frozen and thawed.
  • Samples which fail the minimum data set.

Assay Limitations:

  • D-Dimer results are not affected by haemoglobin up to 500 mg/dl, bilirubin up to 18 mg/dl, triglycerides up to 1327 mg/dl or rheumatoid factor up to 1400 iu/ml.

Reference Range

<250 ng/mL

Specifications

  • EQA Status: NEQAS
  • EQAS Scheme: Yes

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