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Test Code DDIMR D-Dimer, Plasma

Performing Laboratory

Mary Washington Healthcare-Department of Pathology and Laboratory Medicine-Hematology

Specimen Requirements

Specimen should arrive within 2 hours of draw.



Container/Tube:  Light blue-top (sodium citrate) tube(s)

Volume:  Full tube - Tube(s) must be completely full for proper blood to anticoagulant ratio.

Collection Instructions:

1. Tube for discard (without additives) should be drawn if using a winged blood collection set to remove dead space prior to filling citrate tube.

2. Gently invert 3 to 4 times to mix blood. Do not shake.

Transport Temperature:  Ambient. If there is a delay in transport of >4 hours see "Note" below.

Note:  If there is a delay in transport:


          Remove plasma to plastic tube.

          Centrifuge plasma again.

          Remove plasma (platelet-poor) a second time to fresh plastic tube.

          Freeze specimen for transport.


Label specimen appropriately (plasma).

Reference Values

See report.

Day(s) Test Set Up

Monday through Sunday