Label Mnemonic: DDI
Epic code: LAB602
Downtime form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
6240 RCP
Citrated Plasma More information
Collection Medium:
Light Blue top tube 1.8 mL (Na Citrate)
Full draw; 1.8 mL in light blue-top (3.2% sodium citrate) tube. Mix well.
Delivery Instructions:
Deliver to laboratory immediately after collection.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
<0.50 mg/L Fibrinogen Equivalent Units (FEU)
D-dimer units of measurement are mg/L FEU, where FEU = fibrinogen equivalent units. In conjunction with a non-high clinical probability assessment, a D-dimer result below the accepted cut-off (< 0.5 mg/L FEU) excludes deep vein thrombosis and pulmonary embolism with high sensitivity. D-dimer values above the reference range (> 1.14 mg/L FEU) are not specific and may be seen in deep venous thrombosis, pulmonary embolism, disseminated intravascular coagulation, fibrinolysis, recent surgery, active bleeding, hematomas, trauma, pregnancy, liver disease, inflammation, and malignancy.

Updated to Siemens Innovance D-Dimer assay on 7/14/2020
CPT Code:
See Additional Information:
Specimens Requiring Immediate Delivery