3550      D-Dimer
Specimen:
  Collect: One 4 mL Blue Top (Na Citrate)  
  Submit: 2 mL (Min:1 mL) Plasma. Submit Frozen. Submit in a Standard Transport Tube.  
  Rejection Criteria: If test cannot be performed within 1 hour separate plasma and freeze. 
  Stability: Ambient: Unacceptable; Refrigerated: 1 Hour(s); Frozen: 1 Month(s); Incubated: Unacceptable 
Methodology: Immunoassay; Turbidimetric 
Performed: Sun-Sat 
Reported: 1-2 Day(s) 
CPT Codes:
85380 - Ultrasensitive, qualitative or semiquantitative
Interpretive Data:
General Reference Range : <230 ng/ml

A negative D-Dimer test virtually rules out active thrombotic events. (Deep Venous Thrombosis, DIC, Pulmonary Embolus)
Positive D-Dimer results cannot rule-in diagnosis of thrombotic events. Thrombotic events should be confirmed by other objective tests.