D-dimer

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Test Name:

D-dimer

Collection Device/Tube Type:

2.7 mL blood - plastic, blue top tube (citrate)
CGY DSC: Pediatric/Neonate: 2.7 mL or 1.8 mL blood - plastic, blue top (citrate)

Collection Instructions:

• Fill collection tube completely
• Immediately mix tube 3-4 times by gentle inversion

Submission Requirements:

Specimen must be received at the testing laboratory within 24 hours of collection

If expected delivery is >24 hours:
• Centrifuge and separate platelet poor plasma
• Use plastic pipettes and tubes
• Submit frozen platelet poor plasma in a polypropylene aliquot tube, and not a clear plastic polystyrene tube

Frequency of Testing:

Daily

Reference Range:

< 0.50 FEU

Comments:

A D-dimer below the 0.50 mg/L FEU cutoff may be used with a standardized clinical assessment and/or imaging studies to help exclude venous thromboembolism (VTE). Values above the cutoff are not diagnostically useful in VTE assessment.

Last Reviewed:

02 December 2022

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