|
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
D-Dimer, Quantitative
Test Code10142
CPT Codes
85379<br /> Limited Access Code
Preferred Specimen
1 mL plasma collected from 3.2% sodium citrate (light blue-top) tube
Minimum Volume
0.5 mL
Instructions
Platelet poor plasma: Centrifuge light blue-top tube 15 minutes at approximately 1500g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/ platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcL). Freeze immediately and ship on dry ice.
Transport Container
Plastic vial
Transport Temperature
Frozen (-70° C)
Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen (-70° C): 30 days
Refrigerated: Unacceptable
Frozen (-70° C): 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Gross lipemia • Clotted specimen • Improper blood to citrate ratio • Plasma received room temperature • Plasma received refrigerated
Methodology
Immunoturbidimetric
Setup Schedule
Set up: Tues-Sat; Report available: Next day
Reference Range
< 0.50 mcg/mL FEU
Clinical Significance
D-Dimer is one of the measurable by-products of activation of the fibrinolytic system. Quantitation of D-Dimer assesses fibrinolytic activation and intravascular thrombosis. D-Dimer is of particular value in excluding the diagnosis of venous thromboembolism among patients at high risk.
