Fibrin D-dimer

CoagulationAlso known as: D Dimer Bld IA.DDU-mCncAlso known as: D Dimer Bld IA.rapid-mCncAlso known as: D Dimer CSF LA.DDU-mCncN/A

Detects D-dimer (fibrin breakdown products) in blood to assess CNS clotting and inflammation.

Normal Range

Consult your provider

N/A

Abnormal Levels

Consult your provider

Specimen Type

Blood

Why This Biomarker Matters

Elevated CSF D-dimer may indicate serious infections or inflammatory diseases of the brain and spinal cord, warranting urgent specialist evaluation and treatment.

Overview

D-dimer is a protein fragment released when blood clots break down (fibrinolysis). Testing D-dimer in blood is a key screening tool for thromboembolic events, particularly pulmonary embolism (PE) and deep vein thrombosis (DVT). A negative D-dimer result effectively rules out acute thrombosis in low-to-moderate risk patients. Elevated D-dimer can also occur with disseminated intravascular coagulation (DIC), recent surgery, trauma, infection, and malignancy. It is one of the most commonly ordered coagulation tests in emergency medicine.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

91556-1Primary

Fibrin D-dimer [Mass/volume] in Blood by Immunoassay.DDU

ng/mL

48058-2

Fibrin D-dimer [Mass/volume] in Platelet poor plasma by Immunoassay.DDU

ug/L{DDU}

29280-5

Fibrin D-dimer [Presence] in Platelet poor plasma by Latex agglutination

48066-5

Fibrin D-dimer DDU [Mass/volume] in Platelet poor plasma

ug/L{DDU}

48065-7

Fibrin D-dimer FEU [Mass/volume] in Platelet poor plasma

ng{FEU}/mL;mg{FEU}/L

42499-4

Fibrin D-dimer [Presence] in Cerebral spinal fluid

71427-9

Fibrin D-dimer [Mass/volume] in Blood by Rapid immunoassay

ug/mL;mg{FEU}/L

15179-5

Fibrin D-dimer [Presence] in Platelet poor plasma

48067-3

Fibrin D-dimer [Mass/volume] in Platelet poor plasma by Immunoassay.FEU

ug/mL{FEU}

38898-3

Fibrin D-dimer [Titer] in Platelet poor plasma

{titer}

42727-8

Fibrin D-dimer [Mass/volume] in Cerebral spinal fluid by Latex agglutination

ug/L

Available Lab Tests

Order tests that measure this biomarker

D Dimer Test

$91.96