D-Dimer, Sensitive DDA
One adequately filled 3.0 mL light blue (sodium citrate) top tube.
**TIME SENSITIVE** For specimens that cannot be shipped to the laboratory to arrive within 3 hours of collection, see Collection and Processing of Coagulation Specimens information (link below).
Draw blood into citrate (light blue) tube filled to the proper level (1 part anticoagulant to 9 parts blood). Invert tube 3 to 4 times to avoid clotting.
Ambient, refrigerated: 4 hours; Frozen platelet-poor plasma: 2 weeks.
Specimens that are clotted, hemolyzed, collected in the wrong tube, less than 90% full, non-frozen plasma, or exceed stability limit.
|Schedule||Daily-24 hours per day|
|Preferred Specimen Collection Device(s)|
Less than 0.50 mg/L