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Test Code DDIMERSCRN D-Dimer Screen, Whole Blood

Important Note

This test can only be ordered on patients being seen in the Mercy-Dyersville ER, Dyersville Family Practice, or a UCL Outpatient being drawn at the UCL Mercy-Dyersville site.

The screening test for D-Dimer is performed at UCL Mercy Dyersville site only.

See also the D-Dimer Highly Sensitive, Quantitative performed at UCL Mercy Dubuque and UCL Finley sites.

Additional Codes


PowerChart: D Dimer Screen

Epic: N.A.

MA Cerner: D-Dimer Screen (for Dyersville lab)

Test Method

Fluorescence Immunoassay; Alere Triage D-Dimer

Specimen Requirement

Whole blood collected in an EDTA lavender-top tube.

Additional Specimen Collection Information


Invert the EDTA tube end to end 4 times to thoroughly mix blood and anticoagulant. The tube should be left stoppered until time of testing.

  • Specimen is stable up to 24 hours at room temperature or chilled.
  • Severely hemolyzed specimens are not acceptable.
  • Assay is not affected by either lipemia or icterus.


Testing is performed Monday through Friday.

Routine: Typically completed within 4 hours.

STAT: Typically completed within 30 minutes after the specimen arrives at the testing site.

Reference Values

< 400 ng/mL D-Dimer Units (D DU)

CPT Code Information

85379 Coagulopathy Testing: Fibrin degradation products, D-dimer; quantitative

Useful For

D-Dimer screen is used as an aid in the assessment and evaluation of patients suspected of having disseminated intravascular coagulation or thromboembolic events including pulmonary embolism. This test should not be used as absolute evidence for PE or DVT.

LOINC Code Information

In process

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