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Published on January 31, 2018

D Dimer 

SIM

20291 

CPT

85379 

Synonyms

Dimertest 

Specimen Type

Plasma 

Container

Blue stopper, 3.2% Sodium Citrate

Collection Instructions

none

Volume

4.5 mL

Additional Information

None

Patient Preparation

None

Specimen Processing Instructions

If sample is collected at an outpatient office where the sample is not sent to the Laboratory within the hour for testing:

  • Centrifuge for 15 minutes
  • Remove plasma from the cells being careful not to remove any red cells.
  • Refrigerate plasma at 2-8 degree Celsius, stable for up to 8 hours.

Transport Requirements

Refrigerated

Specimen Stability

Refrigerated Plasma: 8 hours or Frozen PLasma: 1 month at -20 degree Celsius 

Rejection Criteria

•  Gross hemolysis
•  Clotted specimen
•  Lipemia

Reference Range

<0.46 ug/mL FEU (Fibrinogen Equivalent Units)  revised 9-7-11 1450

Critical Value

>20 ug/ml FEU 

Test Includes

D-Dimer 

Methodology

Antibody-coated latex particles agglutinate to form aggregates of a diameter greater than the wavelength of the light, more of the latter is absorbed.  This increase in light absorption is a function of the antigen level present in the test sample.

Diagnostica Stago Evolution instrument is used.

Testing Frequency

Daily, Monday - Sunday 

 

Reviewed By

Sandy Hammett 

Reviewed Date

1-31-18

Supplemental

Reviewed by Sandy Hammett on January 31, 2018

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