Test Overview
Test Methodology

Automated Sensitive Immuno Turbidimetric Assay

Test Usage

The D-Dimer assay is intended for use as an aid in the diagnosis of venous thromboembolism (DVT) and pulmonary embolism (PE), and disseminated intravascular coagulation (DIC), and is indicative of reactive fibrinolysis, and the presence of a clot.

Reference Range *
Test Limitations

High levels of lipids or turbid samples can lead to falsely elevated or decreased values. Patient samples may contain heterophilic antibodies (e.g. human anti-mouse antibodies (HAMA) and rheumatoid factors) that could react with immunoassays to give a falsely elevated or depressed result. This assay has been designed to minimize interference from heterophilic antibodies. Nevertheless, complete elimination from this interference cannot be guaranteed.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

STAT 1 hour, Routine 4 hours

Soft Order Code
DIMER
MiChart Code
D-Dimer
Synonyms
  • D-Dimer
  • Advanced D-Dimer
  • Advanced Dimer
  • Dimer
  • ADV DIMER
  • RADV DIMER
  • RESEARCH ADVANCED DIMER
  • FSP
  • FDP
  • D-DIMER
Laboratory
Hematopathology
Section
Coagulation
STAT Availability

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect specimen in a blue top (citrate 3.2%) tube. Mix by inversion. Specimen should arrive at lab within 3 hours of collection; transport at room temperature. Alternatively, centrifuge, aliquot plasma into a polypropylene plastic vial, and freeze the specimen within 4 hours of collection. Transport frozen specimen on dry ice. Collection of the blood through lines that have been previously flushed with heparin should be avoided. If the blood must be drawn through a VAD (vascular access device), the line should be flushed with 5 mL of saline and the first 5 mL of blood or six dead space volumes of the VAD discarded.

Rejection Criteria
Specimens will be rejected if not properly filled, clotted, grossly hemolyzed, or contaminated with heparin.
Blue Top Tube
Normal Volume
Full 2.7mL tube or 1mL plasma aliquot
Minimum Volume
Full 1.8mL tube or 1mL plasma aliquot
Storage Temperature
Room temperature for whole blood or frozen aliquot of citrated plasma
Billing
CPT Code
85379
Fee Code
31146
LOINC
48065-7
NY State Approved
No