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DDIMER (AUTOMATED)
MessageHEMATOLOGY/COAGULATION
Test Code
DDIMER
Alias/See Also
D-DIMER
Preferred Specimen
PLASMA-NA CITRATE TUBE
Minimum Volume
2.7 MLS
Instructions
D-DIMER MUST BE RUN WITHIN 4 HRS OF DRAW. DRAW 1 BLUE TOP NA-CITRATE TUBE. FILL TO LINE. DO NOT OVERFILL, Follow the rule for order of draw. Mix well
Transport Temperature
ROOM TEMPERATURE
Specimen Stability
Room temperature: 4 hours
Refrigerated (2-8°C): 4 hours
Frozen (-20°C): 2 weeks
Frozen (-70°C): 12 months
Refrigerated (2-8°C): 4 hours
Frozen (-20°C): 2 weeks
Frozen (-70°C): 12 months
Methodology
Turbidimetric Immunoassay
Setup Schedule
DAILY
Report Available
DAILY
Reference Range
Effective 10/2023
A low risk/probability of pulmonary embolism has been reported in patients >=50 yrs of age with either a low clinical test probability
(Wells score of 0-4)and a d-dimer value of <=1000 ng/mL. Or a moderate clinical test probability(Wells score of 4.5-6.0) and a d-dimer
value of <=500 ng/mL.
Effective 6/19/2014
< 300 ng/mL D-Dimer (units: DD-U) assay and associated reference range is FDA approved for the exclusion of deep vein thrombosis and/or pulmonary embolism. Effective 6/19/14 cut-off value for exclusion of venous thromboembolism is 230ng/ml, based on manufacturer studies.
A low risk/probability of pulmonary embolism has been reported in patients >=50 yrs of age with either a low clinical test probability
(Wells score of 0-4)and a d-dimer value of <=1000 ng/mL. Or a moderate clinical test probability(Wells score of 4.5-6.0) and a d-dimer
value of <=500 ng/mL.
Effective 6/19/2014
< 300 ng/mL D-Dimer (units: DD-U) assay and associated reference range is FDA approved for the exclusion of deep vein thrombosis and/or pulmonary embolism. Effective 6/19/14 cut-off value for exclusion of venous thromboembolism is 230ng/ml, based on manufacturer studies.
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.
Effective: 10/2023
A low risk/probability of pulmonary embolism has been reported in patients >=50 yrs of age with either a low clinical test probability(Wells score of 0-4)and a d-dimer value of <=1000 ng/mL. Or a moderate clinical test probability(Wells score of 4.5-6.0) and a d-dimer value of <=500 ng/mL.
Effective: 10/2023
A low risk/probability of pulmonary embolism has been reported in patients >=50 yrs of age with either a low clinical test probability(Wells score of 0-4)and a d-dimer value of <=1000 ng/mL. Or a moderate clinical test probability(Wells score of 4.5-6.0) and a d-dimer value of <=500 ng/mL.
Performing Laboratory
WHITE RIVER JUNCTION VT VA- HEMATOLOGY/COAG 802-295-9363 EXT: 5518, 5519
